Limited Notes: 1 The financial statements for the year ended December 31, 2018 used in calculations include reclassification of some items to be consistent with the presentation of the financial statements

financial statements for the year ended December 31, 2018 used in calculations include reclassification of some items to be consistent with the presentation of the financial statements for the year ended 31

1/8 เลขท่ี 1 อาคาร ทีพี แอนด์ ที ชัน้ 14 ซอยวิภาวดีรังสติ 19 14th Floor, TP&T Tower 1 Soi Vibhavadee-Rangsit 19 Tel : (662) 936-1661-2 แขวงจตจุกัร เขตจตจุกัร กรุงเทพฯ 10900 Chatuchak, Chatuchak, Bangkok 10900, Thailand Fax : (662) 936-1669 ทะเบียนเลขท่ี 0107554000097 Registration No. 0107554000097 HYDROTEK PUBLIC COMPANY LIMITED บริษทั ไฮโดรเท็ค จ ำกดั (มหำชน) (Translation) No. 079/0960 25 September 2017 Subject: Notification of the Board of Directors No.8/2017 and the date of the Extraordinary...

1/8 เลขท่ี 1 อาคาร ทีพี แอนด์ ที ชัน้ 14 ซอยวิภาวดีรังสติ 19 14th Floor, TP&T Tower 1 Soi Vibhavadee-Rangsit 19 Tel : (662) 936-1661-2 แขวงจตจุกัร เขตจตจุกัร กรุงเทพฯ 10900 Chatuchak, Chatuchak, Bangkok 10900, Thailand Fax : (662) 936-1669 ทะเบียนเลขท่ี 0107554000097 Registration No. 0107554000097 HYDROTEK PUBLIC COMPANY LIMITED บริษทั ไฮโดรเท็ค จ ำกดั (มหำชน) (Translation) No. 082/0960 25 September 2017 Subject: Notification of the Board of Directors No.8/2017 and the date of the Extraordinary...

1/8 เลขท่ี 1 อาคาร ทีพี แอนด์ ที ชัน้ 14 ซอยวิภาวดีรังสติ 19 14th Floor, TP&T Tower 1 Soi Vibhavadee-Rangsit 19 Tel : (662) 936-1661-2 แขวงจตจุกัร เขตจตจุกัร กรุงเทพฯ 10900 Chatuchak, Chatuchak, Bangkok 10900, Thailand Fax : (662) 936-1669 ทะเบียนเลขท่ี 0107554000097 Registration No. 0107554000097 HYDROTEK PUBLIC COMPANY LIMITED บริษทั ไฮโดรเท็ค จ ำกดั (มหำชน) (Translation) No. 084/0960 26 September 2017 Subject: Notification of the Board of Directors No.8/2017 and the date of the Extraordinary...

2.04 2.18 1.80 19 Bangkok Commercial Asset Management Public Company Limited Notes: 1 The financial statements for the year ended December 31, 2018 used in calculations include reclassification of some

100 / Number of issued and paid-up shares of the purchasing company By applying each basis, the calculations of the transaction size are as follows: Calculation Criteria Calculation Formula Transaction

offer price and tender offer date. If the Company is notified of such information, the Company will further advise the SET. Based on the calculations of the tender offer price for the GSTEL-W1 warrants

= Number of shares issued in consideration of the assets x 100 / Number of issued and paid-up shares of the purchasing company By applying each basis, the calculations of the transaction size are as follows

1 25 May 2020 Subject: Notification on Resolution of the Board of Directors’ Meeting No. 5/2020, Change of Directors and Directors’ Power, Entering into Connected Transaction, Entering into Transaction on Acquisition of Assets and Determination of the 2020 Annual General Meeting of Shareholders To: Director and Manager The Stock Exchange of Thailand Enclosure 1. Information Memorandum on the Acquisition of Assets (Schedule 1) and the Entry into Connected Transaction of Nation Broadcasting Corpor...