shareholders as follows. (1) Expand opportunity to enter into skincare, cosmeceuticals or cosmetics and medical business, which has positive growth trend and being one of government Ref. WINNER 0009/20108 Page 9

Ref. 0347/2018 Date August 14, 2018 Subject 20% Performance Growth in the second quarter of 2018 Attention: Directors and Managers The Stocks Exchange of Thailand QTC Energy Public Company Limited

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[COMPANY NAME] Ref.: EFORL IR037/2020 September 11, 2020 Subject: Management Discussion and Analysis Quarter 2 Ending 30 June 2020 To President The Stock Exchange of Thailand 1. Overview financial

Ref: AC.037/2019 23 December 2019 Subject Notification of the resolutions of the Board of Directors’ Meeting No.7/2019 To President and Managers The Stock Exchange of Thailand Forth Corporation

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(Translated) August 11, 2020 Ref FSS 120/2020 Subject: Clarification of Company’s Operating Result for the six-month period ended June 30, 2020 To The President and Director The Stock Exchange of

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(Translated) May 12, 2020 Ref FSS 080/2020 Subject: Clarification of Company’s Operating Result for the three-month period ended March 31, 2020 To The President and Director The Stock Exchange of