Mr. SITTILARP SUBSAKON Mr. Sittilarp Subsakon while being the director of Tipco Asphalt Public Company Limited (“TASCO”) knew or possessed an inside information material to negative changes in the

Mr. Sakolkorn Sakavee Bitkub Online Co., Ltd. (“Bitkub”) by Mr. Sakolkorn Sakavee, Chief Executive Officer and authorized director, entered into a market maker agreement with Mr. Anurak Chueachai

Mr. Chana Towan Mr. Chana Towan as the Executive Vice-President and Director of Dcon Product Public Company Limited ("DCON"), knew or possessed an inside information material which might

Miss Laksana Supsakorn Miss Laksana Supsakorn as the Chairman and Authorized Director of Tipco Foods Public Company Limited ("TIPCO") and Director of Tipco Asphalt Public Company Limited

Mr. Kumpol Plussind Mr. Kumpol Plussind as the Managing Director and Director of Chularat Hospital Public Company Limited (CHG) during the incident, knew or possessed an inside information material

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