TRANSLATED VERSION Codified up to No. 2 As of June 12, 2015 Readers should be aware that only the original Thai text has legal force and that this English translation is strictly for reference. 2 13

TRANSLATED VERSION Codified up to No. 2 As of June 12, 2015 Readers should be aware that only the original Thai text has legal force and that this English translation is strictly for reference

) รหัสรายงาน ‘8’ (Ref) รหัสบริษัท Broker ID (Ref) วนัทีร่ายงาน Report Date จ านวนขอ้มูล/บรรทดั : 3 http://capital.sec.or.th/webapp/nrs/data/2857a0.pdf คู่มือการจดัท าเท็กซ์ไฟลเ์พ่ือน าส่งผา่นระบบ One For

. Slib Soongswang) Chief Executive Officer Authorized Signatory Attachment 1 (F 53-4) 1/6 Capital Increase Report Form Hydrotek Public Company Limited 21 September 2017 We, Hydrotek Public Company Limited

TRANSLATED VERSION As of June 3, 2014 Readers should be aware that only the original Thai text has legal force and that this English translation is strictly for reference. 27 Notification of the

cost rose from the average Dated Brent/Dubai (DTD/DB) spread which increased by 58% from the previous year, and Thai Baht depreciated by 4.7%, compared to 2017.  In 2018, the refinery business recorded

monthly, ending 31 December 2017 Source: World Steel Association According to the World Steel Association’s report on world crude steel production was 424.3 million tons in the Fourth-Quarter of 2017 and

World Steel Industry Chart of world crude steel production monthly, ending 31 December 2017 Source: World Steel Association According to the World Steel Association’s report on world crude steel

and Exchange Commission (SEC). An English version of the MD&A has been prepared from the Thai version. In the event of a conflict or a difference in interpretation between the two languages, the Thai

the future. 3. Management’s Message Flat Steel Product ($/T) Management’s Discussion and Analysis (MD&A) For Q3/2017 6 Overview of World Steel Industry According to the World Steel Association’s report