Grant and Cancellation of Share Options

Plant Impact plc

("Plant Impact" or the "Company")

Grant and Cancellation of Share Options

Plant Impact today announces additional disclosures regarding its share option programs.

As disclosed in the Company's most recent annual report for the period ending 31 March 2011, as of that date the Company had outstanding options ("Options") to subscribe for 5,954,642 ordinary shares in the Company ("Shares") which had been granted to employees, Directors and other individuals associated with the Company. In the period between 1 April 2011 and 31 March 2012, 4,073,816 Options were cancelled or lapsed due to termination of employment by resignation or reason of redundancy. Of the Options cancelled or lapsed, Options over 1,360,000 Shares had been granted with an exercise price of 1.0 pence per Share.

In same period, as announced on 8 March 2012, 80,000 Options were exercised by departing employees, none of whom were Directors of the Company. Finally, as announced on 26 August 2011, the Company granted new Options in the period to David Jones, Chairman of Plant Impact, to subscribe for 1,375,000 Shares at an exercise price of 25.5 pence per Share.

As at 31 March 2012, there were Options to subscribe for 3,175,826 Shares in total outstanding.

The Company also announces that today, John Brubaker, Chief Executive Officer of the Company, has been granted options to subscribe for 2,822,100 Shares (the "New Options"). The exercise price of the Options is 24.25 pence per Share, which was the average closing share price of the Company over the 30 trading days immediately prior to the announcement of Mr. Brubaker's appointment as Chief Executive Officer in September 2011. These New Options vest over a three year period, will be fully vested on 24 August 2014 and will be exercisable between 24 August 2012 and 28 June 2022. The New Options were granted pursuant to a legal obligation for the Company to do so that arose on Mr Brubaker's appointment as Chief Executive Officer of the Company and the terms of the New Options are consistent with Mr. Brubaker's employment contract executed at that time.

Following the grant of the New Options to Mr. Brubaker, there are options outstanding over a total of 5,997,926 Shares.

With the exception of the New Options, Mr Brubaker has no other interest in the issued share capital of the Company.

About Plant Impact

Plant Impact is a UK-based agricultural bioscience company that develops and markets crop enhancement and specialty nutrition products to deliver yield and quality benefits for growers. The company was formed in 2003 and is listed on the UK AIM stock exchange (LON:PIM).

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