[Translation] Ref. PDI.B.02.116/98 20 October, 1998 To : President The Stock Exchange of Thailand Re. : Notification of resignation of a director This is to notify the SET that Mr. Chakthep Senivongs Na Ayutthaya has resigned from PDI's directorship and membership of executive committee pursuant to the share subscription agreement signed between a foreign investor and the company dated 7 October 1998. The resignation is effective on 19 October, 1998. Yours truly, - Signature - (Arsa Sarasin) Chairman & Executive Chairman Board Secretary Division Human Resources and Corporate Administration Department