Mr. Amit Prakash Mr. Amit Prakash, Managing Director of Polyplex (Thailand) Public Company Limited (“PTL”), and director and representative of juristic person of Polyplex (Asia) Pte. Ltd. (“PAPL

Mr. Woraphant Chontong Mr. Woraphant Chontong while being a director, executive director and senior executive vice president of financial and administration division of Sino-Thai Engineering and

Mr. Songrit Butrngam Mr. Songrit Butrngam, Director responsible for the operation of SMC Power Public Company Limited (“SMC”) failed to supervise SMC to prepare and submit (1) the audited financial

Mr. Paiwan Butrsa Mr. Paiwan Butrsa, Director responsible for the operation of SMC Power Public Company Limited (“SMC”) failed to supervise SMC to prepare and submit (1) the audited financial

ACC1/19-007 February 18, 2019 Subject: Management Discussion and Analysis for the year ended December 31, 2018 To: Director and Managing Director The Stock Exchange of Thailand Qualitech Public

ACC1/20-012 February 25, 2020 Subject: Management Discussion and Analysis for the year ended December 31, 2019 To: Director and Managing Director The Stock Exchange of Thailand Qualitech Public

AC 52/07-003 ACC1/19-019 May 13, 2019 Subject: Management Discussion and Analysis Quarter 1 Ending March 31, 2019 To: Director and Managing Director The Stock Exchange of Thailand Qualitech Public

ACC6207/003 25 July 2019 Subject Inform the progress of the sale stock in the subsidiary company To Director/ Managing Director The Stock Exchange of Thailand Refer to the company's letter No

AC 52/07-003 ACC1/19-042 August 13, 2019 Subject: Management Discussion and Analysis Quarter 2 Ending June 30, 2019 To: Director and Managing Director The Stock Exchange of Thailand Qualitech Public

AC 52/07-003 ACC1/18-048 November 12, 2018 Subject: Management Discussion and Analysis Quarter 3 Ending September 30, 2018 To: Director and Managing Director The Stock Exchange of Thailand Qualitech