profit margin is calculated by dividing the Net Profit attributable to Owners of the Parent by Total Revenue and Share of Profit and other income 2 Normalized trailing 12 months Please be informed

of the Si Rat Expressway for the year 2003 On April 29, 2019, the Company was informed by the arbitral award dated April 22, 2019, whereby the Arbitral Tribunal unanimously rendered its award requiring

on Acquisition of Assets of East Coast Furnitech Public Company Limited (the Enclosure). Please be informed accordingly. Best Regards, East Coast Furnitech Public Company Limited - Signature - ((Mr

Memorandum on Acquisition of Assets of East Coast Furnitech Public Company Limited (the Enclosure). Please be informed accordingly. Best Regards, East Coast Furnitech Public Company Limited - Signature - (Mr

Sales and Services and Share of Profit from Investments in Associates and Joint Ventures and other income 2 Adjusted annaulized Please be informed accordingly. Sincerely, ………………………………… Mr. Paopitaya

million in the 2nd quarter of 2018 when compared with the 2nd quarter of 2017 financial cost was THB 0.67 million, which decreased by THB 0.59 million or 87.99%. Please be informed accordingly Yours

of the Company which are different from that of the Board of Directors. Please be informed accordingly Sincerely Yours, (Mr. Santi Piyatat) Director and Managing Director http://www.kcproperty.co.th/

Information Memorandum on the Asset Acquisition Transaction of Origin One Thonglor Co., Ltd. Are set out as Enclosure 3. Please be informed accordingly. Sincerely yours, (Mr. Peerapong Jaroon-ek) Director and

the Management Discussion and Analysis (MD&A) as attached herewith. Please be informed accordingly. Yours faithfully, For and on behalf of Diamond Building Products Public Company Limited (Mr. Satid

-mail: aienergy@aienergy.co.th บริษัท เอไอ เอนเนอร์จี จ ำกดั (มหำชน) AI Energy Public Company Limited ทะเบียนเลขที ่ 0107556000311 Please be informed accordingly Yours Sincerely, AI Energy Public Company