Publicity of the Notice of the Annual Report Year 2009

(Translation) TTW/0121/10 March 22, 2010 Subject: Publicity of the Notice of the Annual Report Year 2009 Attention: President The Stock Exchange of Thailand With reference to the Board of Directors Meeting No.1/2010 of Thai Tap Water Supply Public Company Limited held on February 5, 2010 has approved the 2010 Annual General Meeting of Shareholders to be held on April 2, 2010 at 9.30 a.m. at Professor Sangvean Meeting Hall, the Stock Exchange of Thailand, Ratchadapisek Road, Klongtoey, Bangkok. The company would like to inform that the company has publicized the notice of the Annual Report 2009 on the company's website and please download at http://www.thaitap.com until March 31, 2010. Please be informed accordingly, Yours faithfully, (Sompodh Sripoom) Managing Director Office of Managing Director Telephone : 0-2811-7528 Ext. 207 Facsimile : 0-2811-7687