(-Translation-) Ref. No. U.SET 001/2019 January 7, 2019 Subject : Acquisition of ordinary shares in Glamford Investments sp. z o.o. To : The President The Stock Exchange of Thailand U City Public

(-Translation-) Ref. No. U.SET 022/2019 September 20, 2019 Subject : Acquisition of ordinary shares in Trebren Investments Sp.z.o.o. To : The President The Stock Exchange of Thailand U City Public

(36.21%). When the raw material price is increased, we pla margin. Unfortunately, the raw material price has been rally down in May until now. So we cannot increase the selling price in the market but we

10, 2019 Subjects : The acquisition of ordinary shares of WPS (Thailand) Co., Ltd. increased 15% Attention : The Director and Manager of the Stock Exchange of Thailand The Board of Directors of Eastern

November 13, 2006 August 13, 2019 Subjects : The acquisition of ordinary shares of WPS (Thailand) Co., Ltd. increased 0.50% Attention : The Director and Manager of the Stock Exchange of Thailand The

information memorandum about the said transaction to the Stock Exchange of Thailand before entering into the transaction. The sell and purchase price are agreed between the buyer and seller. In which the seller

1 -Translation- No.ECF2 004/2018 24 January 2018 Subject: Change in Shareholding Structure of the Planet Board Company Limited, a Subsidiary Company of the Company To: President The Stock Exchange of

compare to the same period of 2016 which gross profit margin was 19.01%. Due to the raw material in stock was higher than the average market price. 3. Selling expenses was Baht 27.26 million which increased

compare to the same period of 2016 which gross profit margin was 19.01%. Due to the raw material in stock was higher than the average market price. 3. Selling expenses was Baht 27.64 million which increased

Date : August 11, 2017 Subject : The Explanation to SET concerning the operating result for Q2/2017 more than 20% Attention : The Director and Manager of the Stock Exchange of Thailand For the Q2