Plant Health Regulatory News (PHC)

25 April 2013

PLANT HEALTH CARE PLC

Plant Health Care signs license agreement with Arysta LifeScience

Plant Health Care (AIM / CISX: PHC.L) and Arysta LifeScience Corporation are pleased to announce that they have signed a Product Development and License Agreement for use of Plant Health Care's proprietary Harpin alpha beta technology. Commercial terms were not disclosed.

Arysta LifeScience will develop and commercialize Harpin alpha beta in several crops and markets in combination with a number of Arysta LifeScience-brand foliar products. Sales of the first combination product are anticipated in the USA following registration in time for the 2014 use season.

Research demonstrates that use of Harpin in combination with triazoles can make a significant contribution to the management of resistance to the strobilurin family of chemistry. The international Crop Protection Chemical Stewardship Organization's Fungicide Resistance Action Committee (FRAC) has identified strobilurin fungicides as being at "high risk" for the development of disease resistance.

Paul Schmidt, CEO of Plant Health Care, commented: "We are delighted to enter into this relationship with Arysta LifeScience which promises a number of new products that will use Harpin alpha beta technology to offer improved plant health benefits and superior disease control. This relationship marks a significant step forward for Plant Health Care, and for United States farmers who will benefit from improved yields."

Wayne Hewett, President and CEO of Arysta LifeScience, commented: "Arysta LifeScience is excited to access the Harpin alpha beta technology for use in combination with Arysta LifeScience's value-added product portfolio. The technology has been validated in the United States corn and soybean market and Arysta LifeScience is focused on launching new products in the United States market in 2014 as well as developing the concept in a number of crops and countries."

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About Plant Health Care plc: Plant Health Care plc ("Plant Health Care") is a leading provider of novel patent protected biological products to the global agriculture markets. The Company's ordinary shares have been quoted on the AIM Market 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).

About Arysta LifeScience Corporation

Headquartered in Tokyo, Japan, Arysta LifeScience is one of the world's largest privately held crop protection and life science companies with 2012 revenues of JPY131.7 billion (US$1.6 billion). An entrepreneurial provider of crop protection and life science products in more than 125 countries worldwide, Arysta LifeScience specializes in marketing and distribution of respected crop protection brands and life science products that meet the needs of our global partners. More information on the company is available at: www.arystalifescience.com.

Further information is available at: www.planthealthcare.com or please contact: