/2020. Please be informed accordingly Yours sincerely Miss Tiyaphon Vanagosoom Managing Director K. W. Metal Work Public Company Limited

investments that decreased by Baht 23 million and loss on derivatives amounting at Baht 2 million. Please be informed accordingly. Yours sincerely, Mr. Sompol Tanadumrongsak Managing Director

a result, the share capital of the issued and paid-up shares decreased THB 11.4 MB. Please be informed accordingly, Yours Sincerely, (Miss Valarlak Ngamchitcharoen) Managing Director

, ............................................... (Mr. Taksin Tantipijit) Managing Director Firetrade Engineering Public Company Limited

. Earth Tech Environment Public Company Limited Page 5 Yours Sincerely, (Ekarin Luengviriya) Managing Director Earth Tech Environment Public Company Limited

mostly because of an increase in equity capital from the IPO and a recognition of a net profit for the nine months period ended 30th September 2020. Yours Sincerely, (Ekarin Luengviriya) Managing Director

Piyatat ) Managing Director K.C. Property Public Company Limited

informed accordingly, Yours sincerely, ............................................... (Mr. Taksin Tantipijit) Managing Director Firetrade Engineering Public Company Limited

Investor (Private Placement) 5. Profile and Working Experience of a Nominated Director Following Hydrotek Public Company Limited (the “Company”)’s Board of Directors’ Meeting No.6/2018 held on April 3, 2018

: Miss.Kantima Rodsatru (Daughter of one of the GS’s ultimate shareholders), only shareholder of HECH (Entity in Hong Kong established on January 11, 2018 with total capital of 2,036,586 USD, Board of Director of