Advertising revenue decreased by 45.0% YoY to THB 144mn. o System integration services revenue decreased by 14.2% YoY to THB 368mn.  Recorded a share of loss from investment in joint ventures and associates of

of UWC’s investment in Power Plants business as UWC entered into Share Purchase Agreement with Absolute Clean Energy Plc. on July 10, 2020 in the total amount of THB 851.20 million even though this

507mn o Advertising revenue decreased by 56.8% YoY to THB 179mn. o System integration services revenue decreased by 1.5% YoY to THB 328mn.  Recorded a share of loss from investment in joint ventures and

Company Limited 140/1 KHANJANAPISEK RD., BANGKAE, BANGKAE, BANGKOK, THAILAND. 10160 Tel: 02-455-2888 Fax: 02-455-2763 ( “TRANSLATION” ) No. TG 024 / 2561 6 February 2018 Subject Schedule for the

Company Limited 140/1 KHANJANAPISEK RD., BANGKAE, BANGKAE, BANGKOK, THAILAND. 10160 Tel: 02-455-2888 Fax: 02-455-2763 ( “TRANSLATION” ) No. TG 024 / 2561 6 February 2018 Subject Schedule for the

Company Limited 140/1 KHANJANAPISEK RD., BANGKAE, BANGKAE, BANGKOK, THAILAND. 10160 Tel: 02-455-2888 Fax: 02-455-2763 ( “TRANSLATION” ) No. TG 024 / 2561 6 February 2018 Subject Schedule for the

Company Limited 140/1 KHANJANAPISEK RD., BANGKAE, BANGKAE, BANGKOK, THAILAND. 10160 Tel: 02-455-2888 Fax: 02-455-2763 ( “TRANSLATION” ) No. TG 024 / 2561 6 February 2018 Subject Schedule for the

, Bangkok 10900, Thailand Fax : (662) 936-1669 ทะเบียนเลขท่ี 0107554000097 Registration No. 0107554000097 HYDROTEK PUBLIC COMPANY LIMITED บริษทั ไฮโดรเท็ค จ ำกดั (มหำชน) (Translation) No. 089/1060 9 October

Quarter Ended 31 March, 2020 Page 2 (Translation) 1. Significant Events of the 1st quarter of 2020 1.1 Sales of Ordinary Shares of Hin Kong Power Holding Company Limited On January 3, 2020, the Company sold

Rnj, (Translation) MD. 170/2019 November 13, 2019 Re: Management Discussion and Analysis For the Operating Results ended September 30, 2019 To: President The Stock Exchange of Thailand Management