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

February 25, 2019 SET-19-AC-001 Dear The President The Stock Exchange of Thailand Subject: Clarification of Result’s Operation for the year ended 31 December 2018 According to the resolution of BKD’s

Manager of the Stock Exchange of Thailand For the Q3/2019 period ended of September 30, 2019 (9 months) operating result of the company net loss Baht 0.22 Million comparison with the previous Q3/2018’s net

หน้า 1 จาก 1 Translation February 19, 2020 Subject: Management explanation and analysis for Year ended 31 December 2019 Attn: The Managing Director, the Stock Exchange of Thailand Pacific Pipe 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

Microsoft Word - Q1-17-EN.doc 14 May 2017 Subject : Management discussion and analysis of financial statements for three-month period ended 31 March 2017 Attention : Director and Manager The Stock

จดหมายชี้แจงq260e August 15, 2017 The Managing Director The Stock Exchange of Thailand Subject : Management Discussion and Analysis for three month Ending 30 June 2017 Summary on Second Quarter

Translation November 10, 2017 Subject: Management explanation and analysis for Quarter ended 30 September 2017 Attn: The Managing Director, the Stock Exchange of Thailand Pacific Pipe Public Company

Ref. No. 161/2560 13 November 2017 SUBJECT : Management Discussion and Analysis for quarter 3 ending 30 September 2017 ATTN : The President Stock Exchange of Thailand Nam Seng Insurance Plc. realized

MATI 19/2560 November 13, 2017 Subject Consolidated Financial Report for the nine-month period which ended at September 30, 2017 To Director and Manager The Stock Exchange of Thailand Nine-month