Attn : The Directors and The MAI Manager Ref: Dimet ACC 1711/001 November 9, 2017 Attention: The Directors and The MAI Manager The Stock Exchange of Thailand Subject: Report on Q1’s performance Dear

The Securities and Exchange Commission (SEC) participated in the Declaration of Intent to drive and promote the involvement of the business sector in the Thai capital market in preserving and

.{A} case was referred from the Stock Exchange of Thailand for the SEC's further investigation while cases of {B} and {C} were detected by the SEC's routine inspection. The SEC found from the probe that

Mrs.Ananya Ruangsakvichit During the period of 12 January 2018 to 12 February 2018 and during 3 July 2018 to 9 August 2018, Mrs.Ananya Ruangsakvichit colluded with others to manipulate the stock

Mrs.Kingkarn Smitananda During the period of 12 January 2018 to 12 February 2018, Mrs.Kingkarn Smitananda colluded with others to manipulate the stock price of Star Universal Network Public Company

Mr.Dome Promayorn During the period of 12 January 2018 to 12 February 2018 and during 3 July 2018 to 9 August 2018, Mr.Dome Promayorn colluded with others to manipulate the stock price of Star

Mr. Susitak Achariyasombat During the period of 12 January 2018 to 12 February 2018, Mr. Susitak Achariyasombat colluded with others to manipulate the stock price of Star Universal Network Public

Mr.Thanakit Achariyasombat During the period of 12 January 2018 to 12 February 2018, Mr.Thanakit Achariyasombat colluded with others to manipulate the stock price of Star Universal Network Public

Mr.Praphol Milindachinla During the period of 12 January 2018 to 12 February 2018 and during 3 July 2018 to 9 August 2018, Mr.Praphol Milindachinla colluded with others to manipulate the stock price

Mr. Thanaris Pornpattanajamsai During the period of 27 March 2018 to 28 May 2018, Mr. Thanaris Pornpattanajamsai colluded with others to manipulate the stock price of Bangkok Sheet Metal Public