EN TH
01 June 2006

Additional holiday of the year 2006

1 June 2006 To: The President, Stock Exchange of Thailand Re: Additional holiday of the year 2006 This is to inform that during the year 2006, the company has an additional different holiday when compares with SET's which is Friday 9th June 2006, due to the occasion of the celebration of 60th Anniversary of His Majesty's Accession to the throne. Please be informed accordingly. Yours faithfully, (Chatchai Thiamtong) Vice President - Finance