May 15, 2019 Subject : Management Discussion and Analysis for quarter ended March 31, 2019 Attention : President The Stock Exchange of Thailand 1. Operating Performance 1.1 Revenues Consolidated

August 13, 2018 Re : Management Discussion and Analysis (MD&A) For Quarter 2 / 2018 Attn : President The Stock Exchange of Thailand Baan Rock Garden Public Company Limited wishes to clarify the Company’s

November 8, 2018 Re : Management Discussion and Analysis (MD&A) For Quarter 3 / 2018 Attn : President The Stock Exchange of Thailand Baan Rock Garden Public Company Limited wishes to clarify the Company’s

No. KCM62/007 November, 11 2019 Subject Clarification of operating result for 3rd Quarter 2019 ended September 30, 2019 Attention President The Stock Exchange of Thailand K.C. Metalsheet Public

May 15, 2020 Subject : Management Discussion and Analysis for 1st quarter ended March 31, 2020 Attention : President The Stock Exchange of Thailand 1. Operating Performance 1.1 Revenues Consolidated

1 --Translation-- Sor Gor 106/2017 October 20, 2017 Subject: Management Discussion and Analysis for the third quarter ended September 30, 2017 (Unreviewed) To: The President The Stock Exchange of

1 --Translation-- Sor Gor 113/2017 November 9, 2017 Subject: Management Discussion and Analysis for the third quarter ended September 30, 2017 (Reviewed) To: The President The Stock Exchange of

for the year ended December 31, 2019 To Director and Manager of the Stock Exchange of Thailand Referring to the submission of the audited financial statements of WIIK Public Company Limited “the Company

Ref. No. 087/2560 12 May 2017 SUBJECT : 1Q/2517 reviewed financial statements and related comments ATTN : The President Stock Exchange of Thailand Attachment : The reviewed financial statements for

MATI 13/2560 August 11, 2017 Subject Consolidated Financial Report for the six-month period which ended at June 30, 2017 To Director and Manager The Stock Exchange of Thailand Six-month period