Acquisition of Assets of IGEN Engineering Company Limited ("IGE") (Revised) To: Director and Manager The Stock Exchange of Thailand The resolution of the Board of Directors’ Meeting No.3/2018 of Dimet (Siam

Acquisition of Assets of IGEN Engineering Company Limited ("IGE") (Revised) To: Director and Manager The Stock Exchange of Thailand The resolution of the Board of Directors’ Meeting No.3/2018 of Dimet (Siam

Acquisition of Asset of Padaeng Industry Public Company Limited Reference is made to the resolution of the Board of Directors’ Meeting No. 04-2017 of Padaeng Industry Public Company Limited (the “Company”) held

disposition to the aforementioned 6 purchasers pursuant to the resolution approved in the Meeting. The Company’s Board of Directors (excluding interested director) has considered that the entry into the

of Directors of the Company No. 3/2019 held on June 11, 2019 to invest in shares of such companies, has approved the acquisition transaction, which the company will sign the share purchase agreement on

by 8,500,000 shares (“Seller Group”). The Seller Group has no relationship with management, directors, major shareholders, and controller of the Company and its subsidiaries. Ferrum Energy shall

the resolutions of the Board of Directors’ meeting, Connected Transaction, the Asset Acquisition Transaction and to fix the date of the Extraordinary General Meeting of Shareholders no.1/2019 To

-Translation- No. ECF2 044/2561 3 December 2018 Subject: Notification of the resolutions of the Board of Directors’ Meeting approving the investment in purchasing the ordinary shares of S-TREK

November 2017 Subject: Resolutions of Board of Directors Meeting No. 12/2017 Attention: President Stock Exchange of Thailand Enclosures: 1. Information Memorandum on Asset Acquisition of Origin Property

ไฮโดรเท็ค จํากดั (Translation) No. 024/0461 April 4, 2018 Subject Notification of the Board of Directors No.6/2018 Re: Convening the Extraordinary Shareholders’ Meeting No.1/2018; an Acquisition of