from as of December 31, 2017 totaled Baht 2,489.34 million because the Company’ posted a unappropriated retained earnings was increased. Sincerely Yours, (Mr.Wichian Silapacharanan) Deputy Managing

the Company’ posted a unappropriated retained earnings was increased. Sincerely Yours, (Mr.Wichian Silapacharanan) Deputy Managing Director Authorized to sign on behalf of the company Investor Relations

2,489.34 million because the Company’ posted a unappropriated retained earnings was increased. Sincerely Yours, (Mr.Wichian Silapacharanan) Deputy Managing Director Authorized to sign on behalf of the

increased. Sincerely Yours, (Mr.Wichian Silapacharanan) Deputy Managing Director Authorized to sign on behalf of the company 5 Investor Relations Department Tel: 0-2531-6633, 0-2993-5080-7 ext. 403, 401

retained earnings unappropriated was increased. Sincerely Yours, (Mr.Wichian Silapacharanan) Deputy Managing Director Authorized to sign on behalf of the company Investor Relations Department Tel : 0-2531

. The major reasons is retained earnings unappropriated was increased. Sincerely Yours, (Mr.Wichian Silapacharanan) Deputy Managing Director Authorized to sign on behalf of the company Investor Relations

Patanavanich) Managing Director

14 November 2018 Subject :Management discussion and analysis of financial statement for three-month period ended 30 September 2018 Attention :Director and Manager The Stock Exchange of Thailand The

personal expenses and the depreciation because of the expanding capacity of subsidiaries. Sincerely yours, (Mr.Pongpat Patanavanich) Managing Director

AC 52/07-003 ACC1/19-055 November 11, 2019 Subject: Management Discussion and Analysis Quarter 3 Ending September 30, 2019 To: Director and Managing Director The Stock Exchange of Thailand Qualitech