EN TH
17 December 2009

Difference of holiday date

16 December 2009 To: The President, Stock Exchange of Thailand Re: Difference of holiday date. This is to inform that during the year 2010, the company will have a different holiday when compares with SET's which is a substitution for Chinese New Year on Monday 15th February 2010. Please be informed accordingly. Yours faithfully, (Chatchai Thiamtong) Vice President - Finance