December 12, 2018 Subject : Acquisition of 84.50% shares of WPS (Thailand) Co., Ltd. Attention : Director and Manager Stock Exchange of Thailand Enclosure : 1. Memorandum of the Acquisition of Asset

Connected Transaction (receiving financial assistance) Dear: President The Stock Exchange of Thailand The Board of Directors Meeting of G J Steel Public Company Limited (“Company”) No.10/2017 held on November

Connected Transaction (receiving financial assistance) (Revised) Dear: President The Stock Exchange of Thailand The Board of Directors Meeting of G J Steel Public Company Limited (“Company”) No.10/2017 held

Transaction Rules dated 31 August 2008 (as amended) and Notification of the Board Governors of Stock Exchange of Thailand Re: Disclosure of Information and Other Acts of Listed Companies Concerning Connected

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

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

ที่ กบร No. Kor Bor Ror. 020/2018 November 13, 2018 President The Stock Exchange of Thailand Re : Clarification on the company’s over 20% change in its operating results for 3rd quarter, 2018 Dear

AC 52/07-003 ACC1/20-043 August 13, 2020 Subject: Management Discussion and Analysis Quarter 2 Ending June 30, 2020 To: The President The Stock Exchange of Thailand Qualitech Public Company Limited

obtaining amended information, can request for refund from the company. RICHY must also provide information to investors, if the company has to postpone the listing date on the Stock Exchange of Thailand.?      

Page 1 of 2 No. ACC6101/003 January 22, 2018 Subject: Approval to enter into Contract to sell of Land (Revised) To: President The Stock Exchange of Thailand According to the Board of Director’s