Interim Dividend Payment

BackAug 10, 2005

To President The Stock Exchange of Thailand The Board of Directors Meeting No.5/2005 of Rayong Purifier Public Company Limited (RPC) held on 9 August, 2005 at 01.00p.m. at the Meeting Room of the Company, located at 19 SCB Park Plaza East (Bldg.III) 14floor, Ratchadapisek Road, Chatujak, Bangkok, has resoled interim dividend payment for 6 months operation of 2005 at Baht 0.35 per share. The share register book will be close from August 23, 2005 at noon to determine the right of the shareholders to receive the dividend and fix the date for the payment of the dividend on August 31, 2005. Please be so informed. Sincerely Yours, Mr.Suwinai Suwanhirunkul Managing Director Investor Relations / Managing Director Office Tel 0 2515-8671 e-mail ir@rpcthai.com