Notification of book closing date for interest payment

TTW/041/10 January 22, 2010 Subject: Notification of the record date and book closing date for interest payment of the Company's debentures TTW122A, TTW142A and TTW162A Attention: President The Stock Exchange of Thailand Refer: The Letter No. SSO.SSF0.10/0249 of TMB Bank Plc. dated January 14, 2010 re: Scheduled closing the registered for Thai Tap Water Supply Public Company Limited. Thai Tap Water Supply Public Company Limited ("the Company") would like to informs you the record date and the book closing date for interest payment of the Company's debentures, TTW122A, TTW142A and TTW162A. The details are shown in the reference letter. Please be informed accordingly, Yours faithfully, (Sompodh Sripoom) Managing Director Accounting and Finance Division. 02-8117526 ext. 304 SSO.SSFO.10/0249 July 14, 2010 RE: Scheduled closing the registered for Thai Tap Water Supply Public Company Limited. President The Stock Exchange of Thailand 62 Rachadapisek Road, Bangkok 10110 Dear Sir, We, TMB BANK Public Company Limited. As a Registrar & Paying Agent Debentures of THE SUBORDINATED DEBENTURES OF THAI TAP WATER SUPPLY PUBLIC COMPANY LIMITED NO.1/2009 SERIES 1 DUE 2012 (TTW122A) and SERIES 2 DUE 2014 (TTW142A) and SERIES 3 DUE 2016 (TTW162A) would like to announce that the closing date of the registration of interest payment of the above debentures for period # 2 is on February 12, 2010 and the interest payment will be on February 26, 2010. Details are as follows: Name Interest Rate ( % ) Period Days TTW122A 4.00 August 26, 2009 to February 25, 2010 184 TTW142A 4.75 August 26, 2009 to February 25, 2010 184 TTW162A 5.35 August 26, 2009 to February 25, 2010 184 Yours faithfully, TMB Bank Public Company Limited. ( Mr.Apichart Watanaphusitsagul) (Mr.Anan Vattanarongkupt As the Registrar and Paying Agent Securities Services and Fund Operations Tel. 0-2230-5487, 0-2230-6061