Page 1 of 4 No. RJH – SET 10/2018 12 November 2018 Subject : Management Discussion and Analysis for the 3rd quarter of 2018 ending September 30, 2018 To : The President The Stock Exchange of Thailand

, Amohoe Pluag-daeng, Rayong Branch 2 / 38 Moo. Tambon Tarsit, Amohoe Pluag-daeng, Rayong KWM 003/2561 November 13th, 2018 Subject : Management Discussion and Analysis for the quarter ended September 30

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TRANSLATED VERSION As of August 20, 2014 Readers should be aware that only the original Thai text has legal force and that this English translation is strictly for reference. Notification of the

connection, the Securities and Futures Commission of Hong Kong (“SFC”) and the Office of the Securities and Exchange Commission of Thailand (“SEC”) have agreed to develop a cooperative framework for cross