ANONGLUCK PATTAYANUNT MANAGING DIRECTOR / DIRECTOR 4. Acting SubLt. WIROJ PADTHAYANAN DIRECTOR 5. Mr. WUTTIPONG PATYANUNT DIRECTOR 6. Mrs. ACHARA CHANDRACHAI INDEPENDENT DIRECTOR / CHAIR OF THE AUDIT

COMMITTEE 2. Mr. ADISAK TANGMITRPHRACHA CHAIRMAN OF THE EXECUTIVE COMMITTEE / VICE CHAIRMAN OF THE BOARD OF DIRECTORS / MANAGING DIRECTOR 3. Mrs. NATTAYA TANGMITRPHRACHA DIRECTOR 4. Miss ARIYA TANGMITRPHRACHA

. RAWEEWAN MAHTHONG CHAIRMAN OF THE BOARD OF DIRECTORS 3. Mr. SOMPOL TANADUMRONGSAK MANAGING DIRECTOR / DIRECTOR 4. Mr. SANGCHAROEN TANADUMRONGSAK VICE CHAIRMAN 5. Mr. SOMKIT TANADUMRONGSAK DIRECTOR 6. Mr

WONGVORAZATHE CHAIRMAN / INDEPENDENT DIRECTOR 2. Mr. TAKON TAWINTERMSUP CHAIRMAN OF EXECUTIVE COMMITTEE / MANAGING DIRECTOR (ACTING) / DIRECTOR 3. Mr. SOMKIAT TWILTERMSUP DIRECTOR 4. Mr. ISSARA TWILTERMSUP

2. Mr. ANOND LEKASTHAPON VICE CHAIRMAN OF THE BOARD OF DIRECTORS NO. 1 3. Mr. UTHAI KLANGPIMAI VICE CHAIRMAN OF THE BOARD OF DIRECTORS NO. 3 4. Mr. CHAIWIWAT LEENABANCHONG MANAGING DIRECTOR / DIRECTOR

shareholders meeting for their consideration in accordance with the relevant laws and regulation. The resolution was thus in accordance with the plan and procedure approved by the AGM No.28/2017 held on April 24

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