Change of Accounting Reference Date

Kleenair Systems International plc ("Kleenair" or the "Company") Change of Accounting Reference Date 21 February 2007 The Company hereby announces that it has changed its accounting reference date from 31 December to 30 September. The next final results to be announced will cover the 9 months ending 30 September 2006 and will be released on or before 31 March 2007. For further information please contact: Beth Mason 07812 042747 beth.mason@kleenairsystems.co.uk Nick Harriss 020 7512 0191 ARM Corporate Finance Ltd
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