- Translation - RPC/HO-SET/ELICID 0007/05 May 16th, 2005 Subject : Company Performance for 1st Quarter 2005 To : President The Stock Exchange of Thailand Rayong Purifier Public Company Limited and its subsidiaries would like to clarify the 49.58 % or 40.65 Million Baht increase in the Company's Net Profit after Tax in 1st Quarter 2005 (1Q05) compared to 1st Quarter 2004 (1Q04). The key factors that caused the increase of Net Profit from 81.99 Million Baht in 1Q04 to 122.64 Million Baht in 1Q05 can be summarized as follows:- 1. Production Increase The production volume in 1Q05 has increased by 32% or 45 Million Liter, from 139 Million Liter in 1Q04 to 184 Million Liter in 1Q05. This is as a result of no plant shut down in 1Q05 compared to 1Q04 which had 24 days major plant shut down for equipment repairing and maintenance. Therefore the number of production days in 1Q04 was less than 1Q05. 2. Sales Revenue Increase The Sales Revenue in 1Q04 was increased 41.10% or 810 Million Baht, from 1,971 Million Baht in 1Q04 to 2,781 Million Baht in 1Q05. The Sales Increase comprised of increase in domestic sales and export sales. This increase is because of the increase in production and the rise of world oil price. 3. The Increase of Gross Profit In 1Q05, the company has 236 Million Baht of Gross Profit, increased 19% or 37 Million Baht compared to 199 Million Baht in 1Q04. The increase in Gross Profit is due to the decrease of pricing competition environment, which resulted from the policy of controlled diesel oil price. As a result, the company net profit has increased by 49.58% or 40.65 Million Baht in 1Q05 compared to 1Q04. Please be so informed. Sincerely Yours, Ms. Siraporn Krishnakan Assistant to Managing Director Investor Relations / Managing Director Office Tel 0 2515-8600 Ext.8671