certified public accountant, ended September 30, 2018, details of which are as follows. Calculation Criteria Calculation Formula Transaction Size 1. Net tangible asset (NTA) NTA of the acquired business x the

, ended September 30, 2018, the highest transaction value shall be equal to 14.72 percent as per the details of calculate in the table below. Enclosure Page 4 of 9 Basis Formula Size (percent) 1. Net

determined the conversion rights under the first paragraph in form of formula referred with the shares price in the future, the number of shares provided for the exercise of conversion rights of convertible

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...

บริษทั ไฮโดรเท็ค จ ำกดั (มหำชน) Method Formula Calcution Value 1.) Net Tangible Assets NTA of HSMC x Holding Percentage NTA of Company Cannot be calculated due to the HSMC will be set up on 15 July 2015 2

is not part of pass-through pricing formula with customers. Active dialogue is ongoing with customers to re- cover this cost increase. Aforesaid planned turnarounds in 2Q17 that impacted earnings, in

receipts has not been determined in the prospectus (for example, the offer price is stated as a price range or calculation formula), the approved person shall disseminate or deliver, by any means, documents

than 3 of 4 of total attended shareholders’ voting right excluding voting right of stakeholder.  Calculation of the transaction size are shown below: Rules Formula Transaction Size (%) 1. Net Tangible