rights3 Percentage 4 Number of Units2 Voting rights3 Percentage 4 Number of Units2 Voting rights3 Percentage4 I Person acquiring or disposing: Common shares 73,340,500 73,340,500 5.0433 1,756,200 1,756,200

rights3 Percentage 4 Number of Units2 Voting rights3 Percentage 4 Number of Units2 Voting rights3 Percentage4 I Person acquiring or disposing: Common shares 14,649,300 14,649,300 2.1543 23,304,300

acquired/disposed of Securities held after acquisition/disposition Name of person(s)/juristic person(s) Type(s) of securities Number of Units2 Voting rights3 Percentage 4 Number of Units2 Voting rights3

Financial Statement 144 121 23 19.0 Profit Margin Pursuant to the Financial Statement (percentage) 6.9 5.7 1.2 Performance for the 9 months period ending on September 30, 2017 Revenues from the Selling and

Power Plant Project in the Republic of Indonesia On April 7, 2017, RH International (Singapore) Corporation Pte. Ltd. (“RHIS”), an indirect subsidiary, entered into a Joint Venture Agreement to establish

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

liquidation process. 2. Investment in the power operator business in Philippines The meeting of the Board of the Directors of the Company held on January 26, 2017 has resolved to approve the purchase of the

11.77 (587.5) (10.6%) 6,713.8 14.30 (1,785.0) (26.6%) Breakdown of sales revenues by business group Product Group 2017 2016 2015 Revenue % Revenue % Revenue % Power Electronics Group 36,672 74.4 33,481

increase THB 1.29 million 1.2) Revenue from selling of electricity increase THB 1.52 million or 100% due to in year 2017 Solar Power Project on Rooftop (Solar Rooftop) of Bangpakong Solar Power Co., Ltd

shall have the power to specify the particulars which are material to the agreement. (As amended by Section 6 of the Securities and Exchange Act (No.2) B.E. 2542)