Plant Health Regulatory News (PHC)

27 April 2012

Plant Health Care plc

PLANT HEALTH CARE TO CONDUCT RESEARCH ON

HARPIN PROTEIN WITH ARYSTA LIFESCIENCE

Plant Health Care, a leading provider of naturally-derived products to the global agriculture markets, announces that it has signed a research agreement with Arysta LifeScience to evaluate Harpin commercially as a foliar spray in combination with a number of Arysta LifeScience's products.

Harpin is a leading PHC product and has been shown to increase yields significantly on a variety of crops when applied alone or in combination with other active ingredients. Arysta LifeScience will test Harpin formulations in combination with a number of its actives. Harpin technology offers yield improvement as a result of suppression of pests, such as nematodes, and defense against damaging diseases, as well as additive plant health benefits. Under this agreement, improvements in yield, plant health and product efficacy will be evaluated in a range of crops and environmental situations.

John Brady, CEO of Plant Health Care, commented: "We are excited to establish a testing programme with Arysta LifeScience, an innovative global player in the crop protection industry with annual sales of $1.6 billion. Arysta LifeScience has been highly successful in incorporating new technologies into its extensive product portfolio and, with its global reach, a successful outcome will be a major benefit to PHC. We are optimistic that Arysta LifeScience's testing efforts will lead to eventual commercial development of an innovative high return product for growers worldwide."

Bill Lewis, head of global business initiatives, Arysta LifeScience, said: "Harpin technology has the potential to bring additional value to Arysta LifeScience's existing line of products and we are excited about the opportunity to evaluate the Harpin technology."

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About Plant Health Care plc: Plant Health Care plc ("PHC") is a leading provider of naturally-derived products for plants and soil. Established in 1995 in Pittsburgh (Pennsylvania) in the United States, PHC currently has approximately 40 employees and has operations in the United States, Mexico, the United Kingdom, Spain and the Netherlands. The Company's ordinary shares have been quoted on the Alternative Investment Market ("AIM") of the London Stock Exchange since July 2004 and listed on the Official List of the Channel Islands Stock Exchange ("CISX") since February 2010 (ticker symbol/ mnemonic: PHC).

PHC's products are aimed at agriculture industries and are environmentally beneficial. Through the commercialisation of these products, PHC is capitalising on current long-term trends toward natural systems and biological products for plant care and soil and water management. Further information is available at: www.planthealthcare.com.

For further information, please contact:

About Arysta LifeScience Corporation

Headquartered in Tokyo, Japan, Arysta LifeScience is the world's largest privately held crop protection and life science company with 2011 revenues of JPY125.8 billion (US$1.6 billion). An entrepreneurial provider of crop protection and life science products in more than 125 countries worldwide, Arysta LifeScience specialises in marketing and distribution of respected crop protection brands and life science products in harmony with the needs of global partners. More information on the company is available at: www.arystalifescience.com.

Contact:

Linda Frerichs Global Communications Manager

Arysta LifeScience Corporation

919-678-4948

linda.frerichs@arystalifescience.com

Tara Hart Public Relations Manager

Woodruff Sweitzer

816-255-1960

thart@woodruffsweitzer.com