TRANSLATED VERSION Codified up to No. 2 As of June 12, 2015 Readers should be aware that only the original Thai text has legal force and that this English translation is strictly for reference. 2 13

TRANSLATED VERSION Codified up to No. 2 As of June 12, 2015 Readers should be aware that only the original Thai text has legal force and that this English translation is strictly for reference

(UNOFFICIAL TRANSLATION) Codified up to No.3 As of March 6, 2017 Readers should be aware that only the original Thai text has legal force, and that this English translation is strictly for reference

, investors should exercise their own judgment when considering detailed information relating to the issuing company of the securities and the conditions of securities, including the suitability for investment

achievements exprESSEd or implied by such forward‐looking statements. None of the future projections, expectations, estimates or prospects in this presentation should be taken as forecasts or promises nor should

3 directors namely should retire by rotation to be re-elected to return to the office which are: (1) Mr. Rujapong Prabhasanobol Chairman of Audit committee; Nomination and Remuneration Committees; and

contract has not yet been signed with the project owner. Should there be any update, the company will inform investors accordingly. The company certifies that this information is accurate and complete in all

season and seasonal price decline of our key feedstock, butane, should further improve US MTBE demand and spreads in summer months. The demand for downstream markets of our HVA portfolio remained healthy

TRANSLATED VERSION codified up to No.2 as of July 10, 2015 Readers should be aware that only the original Thai text has legal force and that this English translation is strictly for reference

UNOFFICIAL TRANSLATION Codified up to No. 6 As of 26 July 2018 Readers should be aware that only the original Thai text has legal force and that this English translation is strictly for reference