TO INFORM ABOUT A CONNECTED TRANSACTION

Our ref: ST/ 2002/0213 May 7, 2002 Subject: To Inform About A Connected transaction To: The President - The Stock Exchange of Thailand HTR Company Limited, an 80.90% owned subsidiary of STECON has received a financial support from a related person, Perpetual Prosperity Company Limited. On April 25, 2002, Perpetual Prosperity Company Limited has given a clean loan in the amount of 50,000,000 Baht to HTR Company Limited to repay and release mortgage from Ekachart Finance Public Company Limited with the same interest rate and repayment term. In accordance with Notifications to SET, Re: rules, procedures and disclosure of connected transaction Clause 9 (1), the company would like to disclose the transaction as follow: 1. Date On Which Transaction Occurred: 25 April 2002 2. Parties Involved Lender: Perpetual Prosperity Company Limited Borrower: HTR Company Limited (80.90% owned by STECON) 3. General Characteristics of Transaction: Perpetual Prosperity Company Limited gave a clean loan in the amount of 50,000,000 Baht to HTR Company Limited to repay to and release mortgage from Ekachart Finance Public Company Limited with the same interest rate and repayment term. 4. Total value of the Transaction: Value of the Loan Agreement is 50 Mil. Baht or 2.64 % of the total asset value of the company as of December 31, 2001 which equals to 1,896.77 Mil. Baht. 5. The details of STECON, HTR and relationship: 5.1 STECON owns 80.90% of HTR. 5.2 STECON, HTR and Perpetual Prosperity have a common Director which is Mr. Anutin Charnvirakul. 6. The nature and extent of the interest of the connected persons in the transaction: HTR Company Limited (a Subsidiary) has received a financial support from Perpetual Prosperity Company Limited (a Related person) with details as shown in clause 4 above. The total value of the transaction is 50 Mil.Baht or 2.64 % of total asset value of the company as of 31 December 2001 which equals to 1,896.77 Mil. Baht. According to the SET regulation, any connected transaction with the size higher than 0.3% but lower than 3% of the asset value of the Company stated in the latest financial statement, need no approval from the shareholders but must be disclosed to the SET. For your information. Yours sincerely, (Mrs. Ayuporn Wongkomet) Executive Office Manager