If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, check the following box: ☐

If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

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Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one): ☐

The registrant hereby amends this Registration Statement on such date or dates as may be necessary to delay its effective date until the registrant shall file a further amendment which specifically states that this Registration Statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act of 1933 or until this Registration Statement shall become effective on such date as the Commission, acting pursuant to said Section 8(a), may determine.

We have not and the underwriters have not authorized anyone to provide you with any information other than that contained in this prospectus or in any free writing prospectus prepared by or on behalf of us or to which we have referred you. We are offering to sell, and seeking offers to buy, shares of our common stock only in jurisdictions where such offers and sales are permitted. The information in this prospectus or any free writing prospectus is accurate only as of its date, regardless of its time of delivery or the time of any sale of shares of our common stock. Our business, financial condition, results of operations and prospects may have changed since that date.

We are an “emerging growth company,” as defined in Section 2(a) of the Securities Act of 1933, or the Securities Act, as modified by the Jumpstart Our Business Startups Act of 2012 (the “JOBS Act”). As such, we are eligible to take advantage of certain exemptions from various reporting requirements that are applicable to other public companies that are not “emerging growth companies.” These exemptions include, but are not limited to, not being required to comply with the auditor attestation requirements of Section 404 of the Sarbanes-Oxley Act of 2002, as amended (“Section 404”), or the Sarbanes-Oxley Act, reduced disclosure obligations regarding executive compensation in our periodic reports and proxy statements, and exemptions from the requirements of holding a non-binding advisory vote on executive compensation and stockholder approval of any golden parachute payments not previously approved. We have not made a decision regarding whether to take advantage of all of these exemptions. If we do take advantage of any of these exemptions, we do not know if some investors will find our Class A common stock less attractive as a result. If some investors find our common stock less attractive, there may be a less active trading market for our Class A common stock and our stock price may be more volatile.

Pursuant to Section 102 of the JOBS Act, we have provided reduced executive compensation disclosure, including the elimination of compensation discussion and analysis.

In addition, Section 107 of the JOBS Act also provides that an “emerging growth company” can take advantage of the extended transition period provided in Section 7(a)(2)(B) of the Securities Act for complying with new or revised accounting standards. In other words, an emerging growth company can delay the adoption of certain accounting standards until those standards would otherwise apply to private companies. We intend to take advantage of the benefits of this extended transition period.

We could remain an emerging growth company for up to five years, or until the earliest of (a) the last day of the first fiscal year in which our annual gross revenues exceed $1 billion, (b) the date that we become a “large accelerated filer” as defined in Rule 12b-2 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), which would occur if the market value of our Class A common stock that is held by non-affiliates exceeds $700 million as of the last business day of our most recently completed second fiscal quarter, or (c) the date on which we have issued more than $1 billion in non-convertible debt during the preceding three-year period.

Unless otherwise indicated, information contained in this prospectus concerning our industry and the markets in which we operate, including our general expectations and market position, market opportunity and market share, is based on information from Vetnosis Limited (“Vetnosis”), a research and consulting firm specializing in global animal health and veterinary medicine, and management estimates. Vetnosis is a leading provider of research products, commercial information and analysis of the global animal health sector. The information from Vetnosis contained in this prospectus was not prepared by Vetnosis on our behalf. Management estimates are derived from publicly available information, our knowledge of our industry and assumptions based on such information and knowledge, which we believe to be reasonable. We believe these estimates are reasonable as of the date of this prospectus, or if an earlier date is specified, as of such earlier date. However, this information may prove to be inaccurate because of the method by which we obtained some of the data for our estimates or because this information is subject to change and cannot always be verified due to limits on the availability and reliability of independent sources, the voluntary nature of the data gathering process and other limitations and uncertainties inherent in any statistical survey of market shares. In addition, purchasing patterns and consumer preferences can and do change. As a result, you should be aware that market share, ranking and other similar data set forth in this prospectus, and estimates and beliefs based on such data, may not be reliable.

The following trademarks and service marks used throughout this prospectus belong to, are licensed to, or are otherwise used by us in our business: Stafac​®; Eskalin​™; V-Max​®; Terramycin​®; Neo-Terramycin​®; Neo-TM​™; TM-50​®; TM-100​™; Mecadox​®; Nicarb​®; Boviprol​™; Bloat Guard​®; Aviax​®; Aviax II​™; Aviax Plus​™; Coxistac​™; Posistac​™; Banminth​®; Cerditac​™; Cerdimix​™; Rumatel​®; OmniGen-AF​®; Animate​®; Procreatin 7​®; NutrafitoPlus​™; Chromax​®; Provia 6086​™; Safmannan​®; Biosaf​®; AB20​®; Lactrol​®; and TAbic​®.

The following summary highlights information appearing elsewhere in this prospectus. This summary does not contain all of the information you should consider before investing in our Class A common stock. You should read this entire prospectus carefully. In particular, you should read the sections entitled “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and the consolidated financial statements and the related notes thereto included elsewhere in this prospectus. Some of the statements in this prospectus constitute forward-looking statements. See “Forward-Looking Statements.”

In this prospectus, unless the context requires otherwise, references to “PAHC” refer to Phibro Animal Health Corporation, the issuer of the Class A common stock offered hereby, and references to “the Company,” “we,” “our,” or “us” refer to PAHC and, as appropriate in the context, its consolidated subsidiaries.

Phibro Animal Health Corporation is one of the leading animal health companies in the world and is dedicated to helping meet the growing demand for animal protein. We are a global diversified animal health and mineral nutrition company. For nearly 40 years we have been committed to providing livestock producers with value-based products and solutions to help them maintain and enhance the health and productivity of their animals. We sell more than 1,100 product presentations in over 65 countries to approximately 2,850 customers. We develop, manufacture and market products for a broad range of food animals including poultry, swine, beef and dairy cattle and aquaculture. Our products help prevent, control and treat diseases, enhance nutrition to help improve health and performance and contribute to balanced mineral nutrition.

We believe we are the only global company with an animal health business that concentrates exclusively on animals for human consumption and are one of the few global companies offering a comprehensive range of animal health and mineral nutrition products. We believe our key products such as Stafac​®, Nicarb​®, and OmniGen-AF​® (“OmniGen”) enjoy strong brand name recognition and customer loyalty in the markets we serve. We believe our vaccines are recognized as a standard in efficacy against highly virulent disease challenges and our patented TAbic​® vaccine delivery technology provides superior convenience and logistical benefits over conventional glass bottles. The foundation of our product portfolio is based on several key proprietary molecules and formulations that are supported by additional complementary products, which help address important customer needs. As an example of our portfolio depth, we believe over 5.4 billion of the 8.5 billion broiler chickens produced in the United States in 2012 received at least one of our products.

We are further differentiated by our team of highly trained and dedicated professionals who provide technical service and support for our products and offer practical solutions to our customers. Within our Animal Health and Mineral Nutrition segments, utilizing both our sales, marketing and technical support organization of approximately 225 employees and a broad distribution network, we market our portfolio of more than 1,000 product presentations to livestock producers and veterinarians in over 65 countries. Technical support and research is an important aspect of our overall sales effort. Our global reach allows us to connect with key global customers at their corporate, regional and local decision-making levels, and we are implementing a strategy for working with our customers with the broadest and most complex needs by assigning a key account manager to have global responsibility for leading our sales, service, product supply and strategic relationship commitments to these customers (our “Global Key Account Strategy”). We believe our close contact with customers provides us with an in-depth understanding of their businesses and allows us to identify and develop products to address unmet customer needs, anticipate emerging trends and establish ourselves as trusted advisors to our customers.

We have focused our efforts in high value geographies (regions where the majority of livestock production is consolidated in large commercial farms) such as the United States, Brazil, China, Russia, Mexico, Australia, Turkey, Israel, Canada and Europe, and we believe we are well positioned to further accelerate our growth with our established network of sales, marketing and distribution professionals in emerging markets in Latin America, Asia Pacific, Europe and Africa.

In addition to animal health and mineral nutrition products, we manufacture and market specific ingredients for use in the personal care, automotive, industrial chemical and chemical catalyst industries.

For the fiscal year ended June 30, 2013, our net sales were $653.2 million, our net income was $24.9 million and our Adjusted EBITDA was $75.8 million. For the six months ended December 31, 2013, our net sales were $335.0 million, our net income was $8.1 million and our Adjusted EBITDA was $43.9 million. Our revenue stream is well-balanced and diversified by product, geography and customers, and our largest single customer (a distributor) represented approximately 8% of net sales for fiscal year 2013. We manage our business in three segments—Animal Health, Mineral Nutrition and Performance Products—each with its own dedicated management and sales team, for enhanced focus and accountability. Our Animal Health business contributed 59% of our net sales and 85% of our Adjusted EBITDA (excluding unallocated corporate costs) for fiscal year 2013, and we expect Animal Health will continue to be the key driver of our future growth. Our Mineral Nutrition business contributed 31% of our net sales and 12% of our Adjusted EBITDA (excluding unallocated corporate costs) for fiscal year 2013. Our Performance Products business contributed 10% of our net sales and 3% of our Adjusted EBITDA (excluding unallocated corporate costs) for fiscal year 2013. See “Summary Consolidated Financial and Other Data” for a reconciliation of Adjusted EBITDA to net income.

The global livestock animal health sector represented approximately $13.3 billion of sales in 2012, or approximately 60% of the global animal health medicines and vaccines market. Vetnosis projects the global livestock animal health market to grow at a compound annual rate of 6% between 2012 and 2017. We believe this growth will be driven by:

There is considerable scientific and regulatory debate concerning whether the use of antibiotics in livestock can increase the risk to humans who consume meat potentially containing antibiotic-resistant organisms. For example, the United States Food and Drug Administration (the “FDA”) recently announced a plan to help phase out the use of medically important antibiotics in livestock feed for growth promotion and/or feed efficiency purposes. However, the recent FDA guidance provides for continued use of antibiotics in food-producing animals for treatment, control and prevention of disease under the supervision of a veterinarian. We believe most rigorous analyses have shown that, when used properly, these products create little to no risk for humans. Furthermore, this risk must be balanced against the benefits of permitting the use of antibiotics in animals, which we believe include the prevention, control and treatment of disease for animal welfare, the preservation of scarce natural resources to reduce the impact of agriculture on the environment, the safety and sustainability of the food supply and the need to feed the world’s growing population.

We believe our business is uniquely positioned to capitalize on both the local and global trends outlined. We manage our business in three segments—Animal Health, Mineral Nutrition and Performance Products.

We believe the following strengths create sustainable competitive advantages that will enable us to continue our growth as a leader in our industry:

We are committed to maintaining the health of animals and bringing solutions to our customers who raise and care for them. We intend to continue to grow our business by pursuing the following core strategies:

An investment in our Class A common stock involves a high degree of risk. Any of the factors set forth under “Risk Factors” may limit our ability to successfully execute our business strategy. You should carefully consider all of the information set forth in this prospectus and, in particular, should evaluate the specific factors set forth under “Risk Factors” in deciding whether to invest in our Class A common stock. Among these important risks are the following:

On February 26, 2014, the Board of Directors approved a $25 million pro rata dividend to be distributed to the existing holders of common shares of the Company (the “Dividend”). On February 28, 2014, we paid the Dividend to the existing holders of common shares of the Company.

On February 28, 2014, we amended our existing domestic senior credit facility (the “Domestic Senior Credit Facility”) to permit the Dividend.

Concurrently with and conditioned upon completion of this offering, we expect to enter into a $100 million revolving credit facility (the “2014 Revolving Credit Facility”) and $290 million senior secured term loan facility (the “2014 Senior Secured Term Loan Facility,” together with the 2014 Revolving Credit Facility, the “New Credit Facilities”). The 2014 Revolving Credit Facility is expected to have an interest rate of 2.75% plus LIBOR. The 2014 Senior Secured Term Loan Facility is expected to have an interest rate of 3.00% plus LIBOR, with a LIBOR floor of 1.00%. The maturity date of the 2014 Revolving Credit Facility and the maturity date of the 2014 Senior Secured Term Loan Facility are expected to be the fifth and seventh anniversaries of the closing date of the New Credit Facilities, respectively. The foregoing terms are not final and will depend upon the results of negotiations with lenders. See “Description of Certain Indebtedness.” A portion of the proceeds from the New Credit Facilities, together with the net proceeds of this offering, will be used to repay in full our 9.25% senior notes due July 1, 2018, the amounts currently outstanding under the term loan payable to Mayflower, the term loan payable to BFI and the Domestic Senior Credit Facility and pay fees and expenses. The Domestic Senior Credit Facility will be terminated following such repayment. The resulting estimated annual interest savings are expected to be $20.8 million. We will record a loss on extinguishment of debt of approximately $26.7 million upon repayment of our existing debt. See also “Use of Proceeds” and “Capitalization.”

We are organized in Delaware. BFI Co., LLC (“BFI”), a Bendheim family investment vehicle, and Mayflower Limited Partnership (“Mayflower”), a limited partnership that is managed by 3i Investments plc and advised by 3i Corporation, and whose sole limited partner is 3i Group plc, the ultimate parent company of both 3i Investments plc and 3i Corporation, are our controlling stockholders and, as of December 31, 2013, owned approximately 70.1% and 29.9% of our outstanding equity interests, respectively. Our principal executive offices are located at Glenpointe Centre East, 3rd Floor, 300 Frank W. Burr Boulevard, Suite 21, Teaneck, New Jersey 07666-6712. Our telephone number is (201) 329-7300. The address of our website is www.pahc.com. The information contained on our website does not constitute a part of this prospectus.

The chart below illustrates our corporate structure upon completion of this offering. For additional information concerning our stockholders, see “—Principal Stockholders” below.

After the consummation of this offering, 100% of our Class B common stock, representing approximately 92.8% of our voting power, will be held by BFI and approximately 28.5% of our Class A common stock, representing approximately 2.1% of our voting power, will be held by Mayflower.

BFI is a Bendheim family investment vehicle, formed as a limited liability company, owned by Jack C. Bendheim, his wife, their children and their spouses and trusts for their benefit and the benefit of his grandchildren. Mr. Bendheim has sole authority to vote the common stock of PAHC owned by BFI.

Mayflower is a Jersey limited partnership that is managed by 3i Investments plc, and advised by 3i Corporation, and whose sole limited partner is 3i Group plc, the ultimate parent company of both 3i Investments plc and 3i Corporation.

Unless otherwise indicated, all information in this prospectus relating to the number of shares of Class A common stock and Class B common stock to be outstanding immediately after this offering:

Unless otherwise indicated, all share amounts in this prospectus relating to warrants and stock options and their related exercise prices have been adjusted to give effect to the 0.442-for-1 stock split and reclassification of our common stock to take place immediately prior to the completion of this offering.

The following table presents our summary consolidated financial data and certain other financial data. The balance sheet data as of June 30, 2013 and 2012 and the results of operations data and cash flows data for the years ended June 30, 2013, 2012 and 2011 have been derived from our audited consolidated financial statements, which are included elsewhere in this prospectus. The balance sheet data as of December 31, 2013 and the results of operations data and cash flows data for the six months ended December 31, 2013 and 2012 have been derived from our unaudited interim consolidated financial statements included elsewhere in this prospectus, and which, in the opinion of management, include all adjustments, consisting only of normal recurring adjustments, necessary for a fair statement of the results for the unaudited interim periods. Operating results for the six months ended December 31, 2013 are not necessarily indicative of the results that may be expected for the fiscal year ending June 30, 2014.

The consolidated financial and other data presented below should be read in conjunction with our audited consolidated financial statements and the related notes thereto and our unaudited interim consolidated financial statements and the related notes thereto, included elsewhere in this prospectus, and the section entitled “Management’s Discussion and Analysis of Financial Condition and Results of Operations.” Our historical consolidated financial and other data may not be indicative of our future performance.

Investing in our Class A common stock involves a number of risks. Before you purchase our Class A common stock, you should carefully consider the risks described below and the other information contained in this prospectus, including our consolidated financial statements and accompanying notes. If any of the following risks actually occurs, our business, financial condition, results of operation or cash flows could be materially adversely affected. In any such case, the trading price of our Class A common stock could decline, and you could lose all or part of your investment.

The issue of the potential transfer of antibacterial resistance from bacteria from food-producing animals to human bacterial pathogens, and the causality of that transfer, are the subject of global scientific and regulatory discussion. Antibacterials refer to molecules that can be used to treat or prevent bacterial infections and are a sub-categorization of the products that make up our medicinal feed additives portfolios. In some countries, this issue has led to government restrictions on the use of specific antibacterials in some food-producing animals, regardless of the route of administration (in feed, water, intramammary, topical, injectable or other route of administration). These restrictions are more prevalent in countries where animal protein is plentiful and governments are willing to take action even when there is scientific uncertainty. In December 2013, the FDA announced a plan to phase out over a three-year period the use of medically important antibacterials in animal feed for growth promotion in food production animals (for food production purposes, medically important antibacterials include classes that are prescribed in animal and human health). The guidance provides for continued use of medically important antibacterials in food-producing animals for treatment, control and prevention of disease (“therapeutic” use) under the supervision of a veterinarian. The FDA indicated that it took this action to help preserve the efficacy of medically important antibacterials to treat infections in humans. In the United States, the antibacterial products within our poultry business, our largest business in this region, as well as our cattle business, have both approved therapeutic and non-therapeutic indications. We believe, based on current producer usage patterns, that the large majority of use of our products in these segments is at therapeutic dosage levels. We currently generate a portion of our revenues from antibacterial products sold for use in turkey and swine in the United States where we do not currently have therapeutic claims that match our customers’ usage patterns. We intend to ensure that our antibacterial product offerings are in full alignment with the FDA’s guidance documents within the FDA’s three-year implementation period, and will pursue both new and additional therapeutic claims for these products with the FDA. However, there can be no assurance that we will be successful in obtaining such claims. While it is difficult to predict exactly what impact the removal of non-therapeutic claims for our products that are medically important antibacterials will ultimately have on our sales, we estimate that, based on our customers’ usage patterns, had we voluntarily decided to withdraw all of our non-therapeutic claims for these products in the United States, and did not add any new therapeutic claims for these products, our MFA & Other net sales would have been reduced by approximately $15 to $20 million for our fiscal year ended June 30, 2013.

Our carbadox product has been approved for use in food animals for over 40 years. Certain regulatory bodies have raised concerns about the possible presence of certain residues of our carbadox product in meat from animals that consume the product. The product was banned for use in the EU in 1998 and has been banned in several other countries outside the United States. In 1998, following a submission by the drug sponsor, the FDA conducted an evaluation of carbadox and found that it was safe based on the U.S. “sensitivity of the method” policy. Accordingly, the FDA continues to permit the approved use of carbadox. However, the FDA has subsequently raised concerns that certain residues from our carbadox product may persist in tissues for longer than previously determined. See “Business—Regulatory.” Separately, at an August 2013 meeting of the Codex Committee on Residues of Veterinary Drugs in Food (“CCRVDF”), a working group of the CCRVDF recommended that the Codex Alimentarius Commission (“Codex”), which is the recognized international standard-setting body for food, adopt, at its July 2014 meeting, risk management advice language for a number of compounds including carbadox stating that “authorities should prevent residues of carbadox in food. This can be accomplished by not using carbadox in food producing animals.” While the proposed recommended language is to provide advice only and is not

binding on individual national authorities, and virtually all national authorities already have long-established regulatory standards for carbadox, if adopted, the proposed recommended language may be considered by national authorities in making future risk management determinations. To the extent additional national authorities elect to follow the proposed risk management advice and prohibit the use of carbadox in food-producing animals, those decisions could have an adverse effect on our sales of carbadox in those countries or in countries like the United States that produce meat for export to those countries.

In 2008, the FDA announced that the agency required formal review of all additives used in the production of ethanol, including our Lactrol​® product (formulated virginiamycin), where the co-products may be used for animal feed. Virginiamycin has been certified by an independent expert panel convened by us as “generally recognized as safe” (“GRAS”) as a processing aid in ethanol production and as related to the use of the resulting distiller’s co-products for animal feed. We believe that this certification satisfies the FDA requirement. However, there can be no assurance we will be successful in maintaining market access for our Lactrol​® product or other ethanol production additives that we sell.

Our global sales of antibacterials and other related products were approximately $303.7 million for the year ended June 30, 2013. We cannot predict whether resistance concerns with antibacterials will result in additional restrictions, expanded regulations or public pressure to discontinue or reduce use of antibacterials in food-producing animals, which could materially adversely affect our operating results and financial condition.

Our medicated products business is comprised of a relatively small number of compounds and accounted for 47% and 47% of net sales for the year ended June 30, 2013 and the six months ended December 31, 2013, respectively. The significant loss of antibacterial or other related product sales for any reason, including competition, product bans or restrictions, public perception or any of the other risks related to such products as described in this prospectus, could have a material adverse effect on our business.

Many of our products face competition from alternative or substitute products. We are engaged in highly competitive industries and, with respect to all of our major products, face competition from a substantial number of global and regional competitors. We believe many of our competitors are conducting R&D activities in areas served by our products and in areas in which we are developing products. Some competitors have greater financial, R&D, production and other resources than we have. Some of our principal competitors include Archer-Daniels-Midland (ADM) Company, Bayer AG, Ceva Santé Animale, Boehringer Ingelheim GmbH, Eli Lilly and Company (Elanco Animal Health), Huvepharma Inc., Lallemand Inc., Merck & Co., Inc. (Merck Animal Health), Novartis AG, Pennfield Corporation, Sanofi (Merial), Southeastern Minerals, Inc., Virbac and Zoetis Inc. To the extent these companies or new entrants offer comparable animal health and nutrition or performance products at lower prices, our business could be adversely affected. New entrants could substantially reduce our market share or render our products obsolete.

In certain countries, because of our size and product mix, we may not be able to capitalize on changes in competition and pricing as fully as our competitors. In recent years, there have been new generic medicated products introduced to the livestock industry, particularly in the United States.

There continues to be consolidation in the animal health and nutrition market, which could strengthen our competitors. Our competitors can be expected to continue to improve the formulation and performance of their products and to introduce new products with competitive price and performance characteristics. There can be no assurance that we will have sufficient resources to maintain our current competitive position or market share.

The demand for our products could be significantly affected by outbreaks of animal diseases, and such occurrences may have a material adverse impact on the sale of our products and our financial

condition and results of operations. The outbreaks of disease are beyond our control and could significantly affect demand for our products and consumer perceptions of certain meat products. An outbreak of disease could result in governmental restrictions on the import and export of chicken, pork, beef or other products to or from our customers. This could also create adverse publicity that may have a material adverse effect on our ability to sell our products successfully and on our financial condition and results of operations. In addition, outbreaks of disease carried by animals may reduce regional or global sales of particular animal-derived food products or result in reduced exports of such products, either due to heightened export restrictions or import prohibitions, which may reduce demand for our products due to reduced herd or flock sizes.

There has been substantial publicity regarding H1N1, known as North American (or Swine) Influenza and, previously, H5N1, known as Highly Pathogenic Avian Influenza, in the human population. There have also been concerns relating to E. Coli O-157 in beef and other food poisoning micro-organisms in meats and other foods. Consumers may associate human health fears with animal diseases, food, food production or food animals whether or not it is scientifically valid, which may have an adverse impact on the demand for animal protein. Occurrences of this type could significantly affect demand for animal protein which in turn could affect the demand for our products in a manner that has a significant adverse effect on our financial condition and results of operations. Also, the outbreak of any highly contagious disease near our main production sites could require us to immediately halt production of our products at such sites or force us to incur substantial expenses in procuring raw materials or products elsewhere.

Outbreaks of an exotic or highly contagious disease in a country where we produce our products (particularly vaccines, which we currently produce in Israel) may result in other countries halting importation of our products for fear that our product may be contaminated with the exotic organism.

Our business depends heavily on a healthy and growing livestock industry. If the public perceives a risk to human health from the consumption of the food derived from animals that utilize our products, there may be a decline in the production of those food products and, in turn, demand for our products. Livestock producers may experience decreased demand for their products or reputational harm as a result of evolving consumer views of animal rights, nutrition and health-related or other concerns. Any reputational harm to the livestock industry may also extend to companies in related industries, including the Company. In addition, campaigns by interest groups, activists and others with respect to perceived risks associated with the use of our products in animals, whether or not scientifically-supported, could affect public perceptions and reduce the use of our products. Those adverse consumer views related to the use of one or more of our products in animals could have a material adverse effect on our financial condition and results of operations.

The animal health industry and demand for many of our animal health products in a particular region are affected by weather conditions, as usage of our products follows varying weather patterns. As a result, we may experience regional and seasonal fluctuations in our results of operations.

In addition, livestock producers depend on the availability of natural resources, including abundant rainfall to sustain large supplies of drinking water, grasslands and grain production. Their animals’ health and their ability to operate could be adversely affected if they experience a shortage of fresh water due to human population growth or floods, droughts or other weather conditions. In the event of adverse weather conditions or a shortage of fresh water, livestock producers may purchase less of our products.

Our operations and customers may be subject to potential physical impacts of climate change, including changes in weather patterns and the potential for extreme weather events, which could affect the manufacture and distribution of our products, agricultural yields and the demand for our products and result in additional regulation that increase our operating costs.

Among other requirements, FDA approval of antibacterials and other medicated products, including the manufacturing processes and facilities used to produce such products, is required before such products may be marketed in the United States. Further, cross-clearance approvals are generally required for such products to be used in combination in animal feed. Similarly, marketing approval by a foreign governmental authority is typically required before such products may be marketed in a particular foreign country.

In addition to approval of the product and its labeling, regulatory authorities typically require approval and periodic inspection of the manufacturing facilities. In order to obtain FDA approval of a new animal health and nutrition product, we must, among other things, demonstrate to the satisfaction of the FDA that the product is safe and effective for its intended uses and that we are capable of manufacturing the product with procedures that conform to FDA’s current Good Manufacturing Practices (“cGMP”) regulations, which must be followed at all times. Following a cGMP inspection of our Teaneck, New Jersey headquarters in October 2012, the FDA issued inspectional observations (Form 483) relating to various analytical test results and practices, expiration dating and reporting requirements regarding specification non-conformance for one of our product formulations of virginiamycin (Stafac​® 20). In response to our subsequent submissions, the FDA sent us a letter in May 2013 indicating they were seeking further explanation and corrective actions regarding the issues raised in the inspectional observations, to which we responded. In December 2013, the FDA replied to our response, noting some changes and proposed refinements to the revised testing procedures for our product, indicating that it would be beneficial for us to engage a third party consultant with cGMP expertise, and indicating that our updated procedures, among additional cGMP requirements, would be reviewed at the FDA’s next inspection. These observations have not impacted our ability to market products in the United States or any other country, and we expect that the identified observations will be satisfactorily addressed. However, the FDA may not be satisfied by the responses and actions taken by us in regard to the inspectional observations cited. The FDA has various means of enforcing cGMP requirements, including seizures and injunctions and failure to resolve this cGMP issue could have a financially material impact on our business.

The process of seeking FDA approvals can be costly, time consuming, and subject to unanticipated and significant delays. There can be no assurance that such approvals will be granted to us on a timely basis, or at all. Any delay in obtaining or any failure to obtain FDA or foreign government approvals or the suspension or revocation of such approvals would adversely affect our ability to introduce and market medicated feed additive products and to generate product revenue. For more information on FDA and foreign government approvals and cGMP issues, see “Business—Government Regulation.”

We make a majority of our sales to a number of regional and national feed companies, distributors, co-ops, blenders, integrated poultry, and swine and cattle operations. Significant consolidation of our customers may result in these groups gaining additional purchasing leverage and consequently increasing the product pricing pressures facing our business. Additionally, the emergence of large buying groups potentially could enable such groups to attempt to extract price discounts on our products. Moreover, if, as a result of increased leverage, customer pressures require us to reduce our pricing such that our gross margins are diminished, we could decide not to sell our products to a particular customer, which could result in a decrease in our revenues. Consolidation among our customer base may also lead to reduced demand for our products and replacement of our products by the combined entity with those of our competitors. The result of these developments may have a material adverse effect on our business, financial condition and results of operations.

Feed, fuel and transportation and other key costs for livestock producers may increase or animal protein prices or sales may decrease. Either of these trends could cause deterioration in the financial condition of our livestock producer customers, potentially inhibiting their ability to purchase our products

or pay us for products delivered. Our livestock producer customers may offset rising costs by reducing spending on our products, including by switching to lower-cost alternatives to our products.

We face competition from products produced by other companies, including generic alternatives to certain of our products. We depend primarily on trade secrets to provide us with competitive advantages for many of our products. The protection afforded is limited by the availability of new competitive products or generic versions of existing products that can successfully compete with our products. As a result, we may face competition from new competitive products or lower-priced generic alternatives to many of our products. Generic competitors are becoming more aggressive in terms of pricing and generic products are an increasing percentage of overall animal health sales in certain regions. If animal health customers increase their use of new or existing generic products, our financial condition and results of operations could be materially adversely affected.

The market for our products could be impacted negatively by the introduction and/or broad market acceptance of newly-developed or alternative products that address the diseases and conditions for which we sell products, including “green” or “holistic” health products or specially bred disease-resistant animals. In addition, technological breakthroughs by others may obviate our technology and reduce or eliminate the market for our products. Introduction or acceptance of such products or technologies could materially adversely affect our business, financial condition and results of operations.

Our products have been approved for use under specific circumstances for, among other things, the prevention, control and/or treatment of certain diseases and conditions in specific species, in some cases subject to certain dosage levels or minimum withdrawal periods prior to the slaughter date. There may be increased risk of product liability if livestock producers or others attempt any extra-label use of our products, including the use of our products in species for which they have not been approved, or at dosage levels or periods prior to withdrawal that have not been approved. If we are deemed by a governmental or regulatory agency to have engaged in the promotion of any of our products for extra-label use, such agency could request that we modify our training or promotional materials and practices and we could be subject to significant fines and penalties. The imposition of these sanctions could also affect our reputation and position within the industry. Even if we were not responsible for having promoted the extra-label use, concerns could arise about the safety of the resulting meat in the human food supply. Any of these events could materially adversely affect our financial condition and results of operations.

Unanticipated safety or efficacy concerns can arise with respect to animal health products, whether or not scientifically or clinically supported, leading to product recalls withdrawals or suspended or declining sales as well as product liability, and other claims.

In addition, we depend on positive perceptions of the safety and quality of our products, and animal health products generally, by our customers, veterinarians and end-users, and such concerns may harm our reputation. In some countries, these perceptions may be exacerbated by the existence of counterfeit versions of our products, which, depending on the legal and law enforcement recourse available in the jurisdiction where the counterfeiting occurs, may be difficult to police or stop. These concerns and the related harm to our reputation could materially adversely affect our financial condition and results of operations, regardless of whether such reports are accurate.

Suppliers and third party contract manufacturers for our animal health and nutrition products, like us, are subject to extensive regulatory compliance. If any one of these third parties discontinues its

supply to us because of significant regulatory violations or otherwise, or an adverse event occurs at one of their facilities, the interruption in the supply of these materials could decrease sales of our affected products. In this event, we may seek to enter into agreements with third parties to purchase raw materials or products or to lease or purchase new manufacturing facilities. We may be unable to find a third party willing or able to provide the necessary products or facilities suitable for manufacturing pharmaceuticals on terms acceptable to us or the cost of those pharmaceuticals may be prohibitive. If we have to obtain substitute materials or products, additional regulatory approvals will likely be required, as approvals are typically specific to a single product produced by a specified manufacturer in a specified facility. As such, the use of new facilities also requires regulatory approvals. While we take measures where economically feasible and available to secure back-up suppliers, the continued receipt of active ingredients or products from a sole source supplier could create challenges if a sole source was interrupted. We may not be able to provide adequate and timely product to eliminate any threat of interruption of supply of our products to customers and these problems may materially adversely impact our business.

While the selling prices of our products tend to increase or decrease over time with the cost of raw materials, such changes may not occur simultaneously or to the same degree. The costs of certain of our significant raw materials are subject to considerable volatility, and we generally do not engage in activities to hedge the costs of our raw materials. Although no single raw material accounted for more than 5% of our cost of goods sold for the year ended June 30, 2013, volatility in raw material costs can result in significant fluctuations in our costs of goods sold of the affected products. The costs of raw materials used by our Mineral Nutrition business are particularly subject to fluctuations in global commodities markets and cost changes in the underlying commodities markets typically lead directly to a corresponding change in our revenues. Although we attempt to adjust the prices of our products to reflect significant changes in raw material costs, we may not be able to pass any increases in raw material costs through to our customers in the form of price increases. Significant increases in the costs of raw materials, if not offset by product price increases, could have a material adverse effect on our financial condition and results of operations.

Although presently all our manufacturing facilities are considered to be in good condition, the operation of our manufacturing facilities involves many risks, including the breakdown, failure or substandard performance of equipment, construction delays, shortages of materials, labor problems, power outages, the improper installation or operation of equipment, natural disasters, terrorist activities, the outbreak of any highly contagious diseases near our production sites and the need to comply with environmental and other directives of governmental agencies. In addition, regulatory authorities such as the FDA typically require approval and periodic inspection of the manufacturing facilities to confirm compliance with applicable regulatory requirements, and those requirements may be enforced by various means, including seizures and injunctions. Certain of our product lines are manufactured at a single facility, and certain of our product lines are manufactured at a single facility with limited capacity at a second facility, and production would not be easily transferable to another site. The occurrence of material operational problems, including but not limited to the above events, may adversely affect our financial condition and results of operations.

Our international operations could be limited or disrupted by any of the following:

The multinational nature of our business subjects us to potential risks that various taxing authorities may challenge the pricing of our cross-border arrangements and subject us to additional tax, adversely impacting our effective tax rate and our tax liability.

In addition, international transactions may involve increased financial and legal risks due to differing legal systems and customs. Compliance with these requirements may prohibit the import or export of certain products and technologies or may require us to obtain a license before importing or exporting certain products or technology. A failure to comply with any of these laws, regulations or requirements could result in civil or criminal legal proceedings, monetary or non-monetary penalties, or both, disruptions to our business, limitations on our ability to import and export products and services, and damage to our reputation. In addition, variations in the pricing of our products in different jurisdictions may result in the unauthorized importation of our products between jurisdictions. While the impact of these factors is difficult to predict, any of them could materially adversely affect our financial condition and results of operations. Changes in any of these laws, regulations or requirements, or the political environment in a particular country, may affect our ability to engage in business transactions in certain markets, including investment, procurement and repatriation of earnings.

We are subject to regulations related to testing, manufacturing, labeling, registration, and safety analysis in order to lawfully distribute many of our products, including for example, in the U.S., the federal Toxic Substances Control Act and the Federal Insecticide, Fungicide, and Rodenticide Act, and in the European Union, the Regulation on Registration, Evaluation, Authorization and Restriction of Chemical Substances (“REACH”). We are also subject to similar requirements in many of the other jurisdictions in which we operate and/or distribute our products. In some cases, such registrations are subject to periodic review by relevant authorities. Such regulations may lead to governmental restrictions or cancellations of, or refusal to issue, certain registrations or authorizations, or cause us or our customers to make product substitutions in the future. Such regulations may also lead to increased third party scrutiny and personal injury or product liability claims. Compliance with these regulations can be difficult, costly and time consuming and liabilities or costs relating to such regulations could have a material adverse effect on our business, financial condition and results of operations.

As of December 31, 2013, we have manufacturing and sales operations in 14 countries and sell our products in over 65 countries. Our operations outside the United States accounted for 56% and 57% of our consolidated assets as of June 30, 2013 and December 31, 2013, respectively, and 37% and 37% of our

consolidated net sales for the year ended June 30, 2013 and the six months ended December 31, 2013, respectively. Our foreign operations are subject to currency exchange fluctuations and restrictions, political instability in some countries, and uncertainty of, and governmental control over, commercial rights.

Changes in the relative values of currencies take place from time to time and could in the future adversely affect our results of operations as well as our ability to meet interest and principal obligations on our indebtedness. To the extent that the U.S. dollar fluctuates relative to the applicable foreign currency, our results are favorably or unfavorably affected. We may from time to time manage this exposure by entering into foreign currency contracts. Such contracts generally are entered into with respect to anticipated costs denominated in foreign currencies for which timing of the payment can be reasonably estimated. No assurances can be given that such hedging activities will not result in, or will be successful in preventing, losses that could have an adverse effect on our financial condition or results of operations. There are times when we do not hedge against foreign currency fluctuations and therefore are subject to the risks associated with fluctuations in currency exchange rates.

In addition, international manufacturing, sales and raw materials sourcing are subject to other inherent risks, including possible nationalization or expropriation, labor unrest, political instability, price and exchange controls, limitation on foreign participation in local enterprises, health-care regulation, export duties and quotas, domestic and international customs and tariffs, compliance with export controls and sanctions laws, the Foreign Corrupt Practices Act and other laws and regulations governing international trade, unexpected changes in regulatory environments, difficulty in obtaining distribution and support, and potentially adverse tax consequences. Although such risks have not had a material adverse effect on us in the past, these factors could have a material adverse impact on our ability to increase or maintain our international sales or on our results of operations in the future.

Our Israeli manufacturing facilities and local operations accounted for 24% and 26% of our consolidated assets as of June 30, 2013 and December 31, 2013, respectively, and 18% and 19% of our consolidated net sales for the year ended June 30, 2013 and the six months ended December 31, 2013, respectively. We maintain manufacturing facilities in Israel, which manufacture:

A substantial portion of this production is exported from Israel to major world markets. Accordingly, our Israeli operations are dependent on foreign markets and the ability to reach those markets. Since the establishment of the State of Israel in 1948, Israel and its Arab neighbors have engaged in a number of armed conflicts. A state of hostility, varying in degree and intensity, has led to security and economic problems for Israel. Major hostilities between Israel and its neighbors may hinder Israel’s international trade. This, in turn, could have a material adverse effect on our business, financial condition and results of operations.

Certain countries, companies and organizations continue to participate in a boycott of Israeli firms and other companies doing business in Israel or with Israeli companies. Currently, the Palestinian Authority is promoting a boycott against goods produced in Israeli settlements in the West Bank. We cannot predict whether such boycott will expand to include all Israeli goods, or the extent to which other countries will join in such boycott. We do not believe that the boycott has had a material adverse effect on us, but we cannot provide assurance that restrictive laws, policies or practices directed toward Israel or Israeli businesses will not have an adverse impact on our operations or expansion of our business. Our Israeli subsidiaries receive a portion of their revenues in U.S. dollars while their expenses are principally payable in New Israeli Shekels. Changes in the currency exchange rates could have an adverse effect on our results of operations.

Our Brazilian manufacturing facilities and local operations accounted for 19% and 17% of our consolidated assets, as of June 30, 2013 and December 31, 2013, respectively, and 23% and 23% of our consolidated net sales for the year ended June 30, 2013 and the six months ended December 31, 2013, respectively. We maintain manufacturing facilities in Brazil, which manufacture virginiamycin, semduramicin and nicarbazin. Our Brazilian facilities also produce Stafac​®, Aviax​®, Aviax Plus​™, Coxistac​™, Nicarb​® and Terramycin​® granular formulations. A substantial portion of the production is exported from Brazil to major world markets. Accordingly, our Brazilian operations are dependent on foreign markets and the ability to reach those markets.

Our business, financial condition and results of operations in Brazil may be adversely affected by factors outside of our control, such as currency fluctuations, energy shortages and other political, social and economic developments in or affecting Brazil.

As of December 31, 2013, approximately 186 of our Israeli employees and 347 of our Brazilian employees were covered by collective bargaining agreements. We believe we have satisfactory relations with our employees. There can be no assurance that we will not experience a work stoppage or strike at our manufacturing facilities. A prolonged work stoppage or strike at any of our manufacturing facilities could have a material adverse effect on our business, financial condition and results of operations.

Our operations and future success are dependent on the continued efforts of our senior executive officers and other key personnel. Although we have entered into employment agreements with certain executives, we may not be able to retain all of our senior executive officers and key employees. These senior executive officers and other key employees may be hired by our competitors, some of which have considerably more financial resources than we do. The loss of the services of any of our senior executive officers or other key personnel, or the inability to hire and retain qualified employees, could have a material adverse effect on our business, financial condition and results of operations.

As a company that produces animal health medicines and vaccines, evaluation of our existing and new products in animals is required in order to be able to register our products. Animal testing in certain industries has been the subject of controversy and adverse publicity. Some organizations and individuals have attempted to ban animal testing or encourage the adoption of additional regulations applicable to animal testing. To the extent that the activities of such organizations and individuals are successful, our R&D, and by extension our financial condition and results of operations, could be materially adversely affected. In addition, negative publicity about us or our industry could harm our reputation.

We are subject to environmental, health and safety laws and regulations, including those governing pollution; protection of the environment; the use, management and release of hazardous materials, substances and wastes; air emissions; greenhouse gas emissions; water use, supply, and discharges; the investigation and remediation of contamination; the manufacture, distribution and sale of regulated materials, including pesticides; the importing, exporting and transportation of products; and the health and safety of our employees and the public (collectively, “Environmental Laws”). See “Business—Environmental, Health and Safety Matters.”

Pursuant to Environmental Laws, certain of our subsidiaries are required to obtain and maintain numerous governmental permits, licenses, registrations, authorizations and approvals, including “RCRA Part B” hazardous waste permits, to conduct various aspects of their operations (collectively “Environmental Permits”), any of which may be subject to suspension, revocation, modification,

termination or denial under certain circumstances or which may not be renewed upon their expiration for various reasons, including noncompliance. See “Business—Environmental, Health and Safety Matters.” These Environmental Permits can be difficult, costly and time consuming to obtain and may contain conditions that limit our operations. Additionally, any failure to obtain and maintain such Environmental Permits could restrict or otherwise prohibit certain aspects of our operations, which could have a material adverse effect on our business, financial condition and results of operations.

We have expended, and may be required to expend in the future, substantial funds for compliance with Environmental Laws. As recyclers of hazardous metal-containing chemical wastes, certain of our subsidiaries have been, and are likely to be, the focus of extensive compliance reviews by environmental regulatory authorities under Environmental Laws, including those relating to the generation, transportation, treatment, storage and disposal of solid and hazardous wastes under the Resource, Conservation and Recovery Act of 1976, as amended (“RCRA”). In the past, some of our subsidiaries have paid fines and entered into consent orders to address alleged environmental violations. See “Business—Environmental, Health and Safety Matters.” We cannot assure you that our operations or activities or those of certain of our subsidiaries, including with respect to compliance with Environmental Laws, will not result in civil or criminal enforcement actions or private actions, regulatory or judicial orders enjoining or curtailing operations or requiring corrective measures, installation of pollution control equipment or remedial measures or costs, revocation of required Environmental Permits, or fines, penalties or damages, which could have a material adverse effect on our business, financial condition and results of operations. In addition, we cannot predict the extent to which Environmental Laws, and the interpretation or enforcement thereof, may change or become more stringent in the future, each of which may affect the market for our products or give rise to additional capital expenditures, compliance costs or liabilities that could be material.

Given the nature of our current and former operations, particularly at our chemical manufacturing sites, we have incurred, are currently incurring and may in the future incur liabilities under the United States Comprehensive Environmental Response, Compensation and Liability Act of 1980, as amended (“CERCLA” or “Superfund”), or under other federal, state, local and foreign Environmental Laws related to releases of or contamination by hazardous substances, with respect to our current or former sites, adjacent or nearby third-party sites, or offsite disposal locations. See “Business—Environmental, Health and Safety Matters.” Certain Environmental Laws, including CERCLA, can impose strict, joint, several, and retroactive liability for the cost of investigation and cleanup of contaminated sites on owners and operators of such sites, as well as on persons who dispose of or arrange for disposal of hazardous substances at such sites. Accordingly, we could incur liability, whether as a result of government enforcement or private claims, for known or unknown liabilities at, or caused by migration from or hazardous waste transported from, any of our current or former facilities or properties, including those owned or operated by predecessors or third parties. See “Business—Environmental, Health and Safety Matters.” Such liability could have a material adverse effect on our business, financial condition and results of operations.

The nature of our current and former operations also exposes us to the risk of claims under Environmental Laws. We could be subject to claims by environmental regulatory authorities, individuals and other third parties seeking damages for alleged personal injury, property damage, and damages to natural resources resulting from hazardous substance contamination or human exposure caused by our operations, facilities or products, and there can be no assurance that material costs and liabilities will not be incurred in connection with any such claims. Our insurance may not be sufficient to cover any of these exposure, product, injury or damage claims.

Furthermore, regulatory agencies are showing increasing concern over the impact of animal health products and livestock operations on the environment. This increased regulatory scrutiny may necessitate that additional time and resources be spent to address these concerns for both new and existing products and could affect product sales and materially adversely affect our business, financial condition or results of operations.

We cannot assure you that our liabilities arising from past or future releases of, or exposure to, hazardous substances will not materially adversely affect our business, financial condition or results of operations.

Because certain of our products constitute or contain hazardous substances, and because the production of certain chemicals involves the use, handling, processing, storage and transportation of hazardous substances, from time to time we are subject to claims of injury from direct exposure to such substances and from indirect exposure when such substances are incorporated into other companies’ products. There can be no assurance that as a result of past or future operations, there will not be additional claims of injury by employees or members of the public due to exposure, or alleged exposure, to such substances. We are also party to a number of claims and lawsuits arising out of the normal course of business, including product liability claims and allegations of violations of governmental regulations, and face present and future claims with respect to workplace exposure, workers’ compensation and other matters. In most cases, such claims are covered by insurance and, where applicable, workers’ compensation insurance, subject to policy limits and exclusions; however, our insurance coverage, to the extent available, may not be adequate to protect us from all liabilities which we might incur in connection with the manufacture, sale and use of our products. Insurance is expensive and in the future may not be available on acceptable terms, if at all. A successful claim or series of claims brought against us in excess of our insurance coverage could have a materially adverse effect on our business, financial condition and results of operations. In addition, any claims, even if not ultimately successful, could adversely affect the marketplace’s acceptance of our products.

We face an inherent business risk of exposure to various types of claims and lawsuits. We are involved in various legal proceedings that arise in the ordinary course of our business. Although it is not possible to predict with certainty the outcome of every pending claim or lawsuit or the range of probable loss, we believe these pending lawsuits and claims will not individually or in the aggregate have a material adverse impact on our results of operations. However, we could in the future be subject to various lawsuits, including intellectual property, product liability, personal injury, product warranty, environmental or antitrust claims, among others, and incur judgments or enter into settlements of lawsuits and claims that could have a material adverse effect on our results of operations in any particular period.

In addition to pollution and other environmental risks, we are subject to risks inherent in the animal health and nutrition and performance products industries, such as explosions, fires and spills or releases. Any significant interruption of operations at our principal facilities could have a material adverse effect on us. We maintain general liability insurance, pollution legal liability insurance, and property and business interruption insurance with coverage limits that we believe are adequate. Because of the nature of industry hazards, it is possible that liabilities for pollution and other damages arising from a major occurrence may not be covered by our insurance policies or could exceed insurance coverages or policy limits or that such insurance may not be available at reasonable rates in the future. Any such liabilities, which could arise due to injury or loss of life, severe damage to and destruction of property and equipment, pollution or other environmental damage or suspension of operations, could have a material adverse effect on our business.

Current U.S. and international economic and market conditions are uncertain. Our revenues and operating results may be affected by uncertain or changing economic and market conditions, including the challenges faced in the credit markets and financial services industry. If domestic and global economic and market conditions remain uncertain or persist or deteriorate further, we may experience material impacts on

our business, financial condition and results of operations. Adverse economic conditions impacting our customers, including, among others, increased taxation, higher unemployment, lower customer confidence in the economy, higher customer debt levels, lower availability of customer credit, higher interest rates and hardships relating to declines in the stock markets, could cause purchases of meat products to decline, resulting in a decrease in purchases of our products, which could adversely affect our financial condition and results of operation.

Adverse economic and market conditions could also negatively impact our business by negatively affecting the parties with whom we do business, including among others, our customers, our manufacturers and our suppliers.

We have been taking steps to take advantage of the rise in global demand for animal protein in emerging markets, including by expanding our manufacturing presence, sales, marketing, and distribution in these markets. Failure to continue to maintain and expand our business in emerging markets could also materially adversely affect our operating results and financial condition.

Some countries within emerging markets may be especially vulnerable to periods of local, regional or global economic, political or social instability or crisis. For example, our sales in certain emerging markets have suffered from extended periods of disruption due to natural disasters. Furthermore, we have also experienced lower than expected sales in certain emerging markets due to local, regional and global restrictions on banking and commercial activities in those countries. For all these and other reasons, sales within emerging markets carry significant risks.

From time to time, we may make selective acquisitions to expand our range of products and services and to expand the geographic scope of our business. However, we may be unable to identify suitable targets, and competition for acquisitions may make it difficult for us to consummate acquisitions on acceptable terms or at all. We may not be able to locate any complementary products that meet our requirements or that are available to us on acceptable terms or we may not have sufficient capital resources to consummate a proposed acquisition. In addition, assuming we identify suitable products or partners, the process of effectively entering into these arrangements involves risks that our management’s attention may be diverted from other business concerns. Further, if we succeed in identifying and consummating appropriate acquisitions on acceptable terms, we may not be able to integrate successfully the products, services and personnel of any acquired businesses on a basis consistent with our current business practice. In particular, we may face greater than expected costs, time and effort involved in completing and integrating acquisitions and potential disruption of our ongoing business. Furthermore, we may realize fewer, if any, synergies than envisaged. Our ability to manage acquired businesses may also be limited if we enter into joint ventures or do not acquire full ownership or a controlling stake in the acquired business. In addition, continued growth through acquisitions may significantly strain our existing management and operational resources. As a result, we may need to recruit additional personnel, particularly at the level below senior management, and we may not be able to recruit qualified management and other key personnel to manage our growth. Moreover, certain transactions could adversely impact earnings as we incur development and other expenses related to the transactions and we could incur debt to complete these transactions. Debt instruments could contain contractual commitments and covenants that could adversely affect our cash flow and our ability to operate our business, financial condition and results of operations.

We are pursuing and may continue to pursue strategic initiatives that management considers critical to our long-term success, including, but not limited to, increasing sales in emerging markets, base revenue growth through new product development and value added product lifecycle development; improving operational efficiency through manufacturing efficiency improvement and other programs; and expanding our complementary products and services. There are significant risks involved with the execution of these types of initiatives, including significant business, economic and competitive uncertainties, many of

which are outside of our control. Accordingly, we cannot predict whether we will succeed in implementing these strategic initiatives. It could take several years to realize the anticipated benefits from these initiatives, if any benefits are achieved at all. We may be unable to achieve expected gross margin improvements on our products or technologies. Additionally, our business strategy may change from time to time, which could delay our ability to implement initiatives that we believe are important to our business.

Our future success depends on both our existing product portfolio, including our ability to obtain cross-clearances enabling the use of our medicated products in conjunction with other products, approval for use of our products with new species, approval for new claims for our products, approval of our products in new markets, and our pipeline of new products, including new products that we may develop through joint ventures and products that we are able to obtain through license or acquisition. We commit substantial effort, funds and other resources to expanding our product approvals and R&D, both through our own dedicated resources and through collaborations with third parties.

We may be unable to determine with accuracy when or whether any of our expanded product approvals for our existing product portfolio or any of our products now under development will be approved or launched, or we may be unable to obtain expanded product approvals or develop, license or otherwise acquire product candidates or products. In addition, we cannot predict whether any products, once launched, will be commercially successful or will achieve sales and revenues that are consistent with our expectations. The animal health industry is subject to regional and local trends and regulations and, as a result, products that are successful in some of our markets may not achieve similar success when introduced into new markets. Furthermore, the timing and cost of our R&D may increase, and our R&D may become less predictable. For example, changes in regulations applicable to our industry may make it more time-consuming and/or costly to research, test and develop products.

Products in the animal health industry are sometimes derived from molecules and compounds discovered or developed as part of human health research. We may enter into collaboration or licensing arrangements with third parties to provide us with access to compounds and other technology for purposes of our business. Such agreements are typically complex and require time to negotiate and implement. If we enter into these arrangements, we may not be able to maintain these relationships or establish new ones in the future on acceptable terms or at all. In addition, any collaboration that we enter into may not be successful, and the success may depend on the efforts and actions of our collaborators, which we may not be able to control. If we are unable to access human health-generated molecules and compounds to conduct R&D on cost-effective terms, our ability to develop new products could be limited.

Our operations are subject to anti-corruption laws, including the U.S. Foreign Corrupt Practices Act (“FCPA”) and other anti-corruption laws that apply in countries where we do business. The FCPA, UK Bribery Act and these other laws generally prohibit us and our employees and intermediaries from bribing, being bribed or making other prohibited payments to government officials or other persons to obtain or retain business or gain some other business advantage. We operate in a number of jurisdictions that pose a high risk of potential FCPA violations, and we participate in joint ventures and relationships with third parties whose actions could potentially subject us to liability under the FCPA or local anti-corruption laws. In addition, we cannot predict the nature, scope or effect of future regulatory requirements to which our international operations might be subject or the manner in which existing laws might be administered or interpreted.

We are also subject to other laws and regulations governing our international operations, including regulations administered by the U.S. Department of Commerce’s Bureau of Industry and Security, the U.S. Department of Treasury’s Office of Foreign Asset Control, and various non-U.S. government entities, including applicable export control regulations, economic sanctions on countries and persons, customs requirements, currency exchange regulations and transfer pricing regulations (collectively, the “Trade Control laws”).

However, there is no assurance that we will be completely effective in ensuring our compliance with all applicable anticorruption laws, including the FCPA or other legal requirements, including Trade Control laws. If we are not in compliance with the FCPA and other anti-corruption laws or Trade Control laws, we may be subject to criminal and civil penalties, disgorgement and other sanctions and remedial measures, and legal expenses, which could have an adverse impact on our business, financial condition, results of operations and liquidity. Likewise, any investigation of any potential violations of the FCPA other anti- corruption laws or Trade Control laws by U.S. or foreign authorities could also have an adverse impact on our reputation, business, financial condition and results of operations.

A third party may sue us or otherwise make a claim, alleging infringement or other violation of the third-party’s patents, trademarks, trade dress, copyrights, trade secrets, domain names or other intellectual property rights. If we do not prevail in this type of litigation, we may be required to:

The costs of defending an intellectual property claim could be substantial and could materially adversely affect our operating results and financial condition, even if we successfully defend such claims.

The intellectual property positions of animal health medicines and vaccines businesses frequently involve complex legal and factual questions, and an issued patent does not guarantee us the right to practice the patented technology or develop, manufacture or commercialize the patented product. We cannot be certain that a competitor or other third party does not have or will not obtain rights to intellectual property that may prevent us from manufacturing, developing or marketing certain of our products, regardless of whether we believe such intellectual property rights are valid and enforceable or we believe we would be otherwise able to develop a more commercially successful product, which may harm our financial condition and results of operations.

Our long-term success largely depends on our ability to market technologically competitive products. We rely and expect to continue to rely on a combination of intellectual property, including patent, trademark, trade dress, copyright, trade secret and domain name protection laws, as well as confidentiality and license agreements with our employees and others, to protect our intellectual property and proprietary rights. If we fail to obtain and maintain adequate intellectual property protection, we may not be able to prevent third parties from using our proprietary technologies or from marketing products that are very similar or identical to ours. Our currently pending or future patent applications may not result in issued patents, or be approved on a timely basis, or at all. Similarly, any term extensions that we seek may not be approved on a timely basis, if at all. In addition, our issued patents may not contain claims sufficiently broad to protect us against third parties with similar technologies or products or provide us with any competitive advantage, including exclusivity in a particular product area. The scope of our patent claims also may vary between countries, as individual countries have their own patent laws. For example, some countries only permit the issuance of patents covering a novel chemical compound itself, and its first use, and thus further methods of use for the same compound, may not be patentable. We may be subject to

challenges by third parties regarding our intellectual property, including claims regarding validity, enforceability, scope and effective term. The validity, enforceability, scope and effective term of patents can be highly uncertain and often involve complex legal and factual questions and proceedings. Our ability to enforce our patents also depends on the laws of individual countries and each country’s practice with respect to enforcement of intellectual property rights. In addition, if we are unable to maintain our existing license agreements or other agreements pursuant to which third parties grant us rights to intellectual property, including because such agreements expire or are terminated, our financial condition and results of operations could be materially adversely affected.

In addition, patent law reform in the United States and other countries may also weaken our ability to enforce our patent rights, or make such enforcement financially unattractive. For instance, in September 2011, the United States enacted the America Invents Act, which will permit enhanced third-party actions for challenging patents and implement a first-to-invent system, and, in April 2012, Australia enacted the Intellectual Property Laws Amendment (Raising the Bar) Act, which provides higher standards for obtaining patents. These reforms could result in increased costs to protect our intellectual property or limit our ability to patent our products in these jurisdictions.

Additionally, certain foreign governments have indicated that compulsory licenses to patents may be granted in the case of national emergencies, which could diminish or eliminate sales and profits from those regions and materially adversely affect our operating results and financial condition.

Likewise, in the United States and other countries, we currently hold issued trademark registrations and have trademark applications pending, any of which may be the subject of a governmental or third party objection, which could prevent the maintenance or issuance of the same and thus create the potential need to rebrand or relabel a product. As our products mature, our reliance on our trademarks to differentiate us from our competitors increases and as a result, if we are unable to prevent third parties from adopting, registering or using trademarks and trade dress that infringe, dilute or otherwise violate our trademark rights, our business could be materially adversely affected.

Our competitive position is also dependent upon unpatented trade secrets, which generally are difficult to protect. Others may independently develop substantially equivalent proprietary information and techniques or may otherwise gain access to our trade secrets, trade secrets may be disclosed or we may not be able to protect our rights to unpatented trade secrets.

Many of our vaccine products and other products are based on or incorporate proprietary information, including proprietary master seeds and proprietary or patented adjuvant formulations. We actively seek to protect our proprietary information, including our trade secrets and proprietary know-how, by requiring our employees, consultants, other advisors and other third parties to execute confidentiality agreements upon the commencement of their employment, engagement or other relationship. Despite these efforts and precautions, we may be unable to prevent a third party from copying or otherwise obtaining and using our trade secrets or our other intellectual property without authorization and legal remedies may not adequately compensate us for the damages caused by such unauthorized use. Further, others may independently and lawfully develop substantially similar or identical products that circumvent our intellectual property by means of alternative designs or processes or otherwise.

The misappropriation and infringement of our intellectual property, particularly in foreign countries where the laws may not protect our proprietary rights as fully as in the United States, may occur even when we take steps to prevent it. In the future, we may be party to patent lawsuits and other intellectual property rights claims that are expensive and time consuming, and if resolved adversely, could have a significant impact on our business and financial condition. In the future, we may not be able to enforce intellectual property that relates to our products for various reasons, including licensor restrictions and other restrictions imposed by third parties, and that the costs of doing so may outweigh the value of doing so, and this could have a material adverse impact on our business and financial condition.

Companies in the animal health industry are subject to extensive and increasingly stringent regulations. If livestock producers are adversely affected by new regulations or changes to existing regulations, they may reduce herd sizes or become less profitable and, as a result, they may reduce their use of our products, which may materially adversely affect our operating results and financial condition. Furthermore, adverse regulations related, directly or indirectly, to the use of one or more of our products may injure livestock producers’ market position. More stringent regulation of the livestock industry or our products could have a material adverse effect on our operating results and financial condition. Also, many industrial producers, including livestock producers, benefit from governmental subsidies, and if such subsidies were to be reduced or eliminated, these companies may become less profitable and, as a result, may reduce their use of our products.

At December 31, 2013 we had $366.1 million aggregate outstanding indebtedness (primarily reflects the face value of the 9.25% senior notes, the Mayflower Term Loan, the BFI Term Loan and our Domestic Senior Credit Facility) plus $16.4 million of outstanding secured letters of credit. A portion of the proceeds from the New Credit Facilities, together with the net proceeds of this offering, will be used to repay in full our 9.25% senior notes due July 1, 2018, the amounts currently outstanding under the term loan payable to Mayflower, the term loan payable to BFI and the Domestic Senior Credit Facility and pay fees and expenses. See “Use of Proceeds” and “Capitalization.”

Additionally, subject to restrictions in the indenture governing the 9​​1∕4% Senior Notes due 2018 (the “Senior Notes”) and our Domestic Senior Credit Facility, the Mayflower Term Loan Agreement (as defined and described in “Description of Certain Indebtedness”) and the BFI Term Loan Agreement (as defined and described in “Description of Certain Indebtedness”) and those we expect to be contained in our New Credit Facilities, we may incur significant additional indebtedness. If we and our subsidiaries incur significant additional indebtedness, the related risks that we face could intensify.

Our substantial debt may have important consequences. For instance, it could: