Acquisition. To: The President The Stock Exchange of Thailand Enclosure 1. Information Memorandum on the Acquisition of Assets of Hydrotek Public Company Limited 2. Capital Increase Form (F 53-4) 3. Information

to investors in private placement, the acquisition of assets and convening the Extraordinary General Meeting of the Shareholders No. 1/2018 (Revise) To : President, The Stock Exchange of Thailand

Disposal of Assets Transaction, and Acquisition of Assets Transaction To : Director and Manager The Stock Exchange of Thailand Enclosure 1. Information Memorandum on the Disposal of Komchadluek Business and

on impacts from volatile international capital flows, which would have repercussions for foreign exchange movements and funding costs. The Thai economy in the second quarter of 2018 exhibited ongong

Disposal of Assets Transaction, and Acquisition of Assets Transaction To : Director and Manager The Stock Exchange of Thailand Enclosure Information Memorandum on Acquisition of Assets (Schedule (1)) of

on Issuance for Sale of Sukuk and Disclosure of Information By virtue of Section 16/6 of the Securities and Exchange Act B.E. 2535 (1992) (SEA), as amended by the Securities and Exchange Act (No. 4

1 --Translation- Sor Gor 75/2017 July 21, 2017 Subject: Management Discussion and Analysis for the second quarter ended June 30, 2017 (Unaudited) To: The President The Stock Exchange of Thailand

latter decreased in production due to the adjustment stock management to suitable with the decrease in HRC market price worldwide. - Gain on exchange rate was achieved of THB 193 million in Q2-2017, which

1 --Translation- Sor Gor 85/2017 August 24, 2017 Subject: Management Discussion and Analysis for the second quarter ended June 30, 2017 (Audited) To: The President The Stock Exchange of Thailand

1 --Translation-- Sor Gor 106/2017 October 20, 2017 Subject: Management Discussion and Analysis for the third quarter ended September 30, 2017 (Unreviewed) To: The President The Stock Exchange of