change in operating assets and liabilities Baht 410.0 million, decreased of operating assets Baht 483.5 million, increased of operating liabilities Baht 39.2 million and decreased of cash paid for income

improvement at Baht 1 million from cancellation of leasehold office building in the beginning of the year.  Finance cost In Q3/2019, finance cost was no change from the prior year same period.  Profit for the

1 -Translation- Ref :IR 62/023 December 23, 2019 Subject: Change in Shareholding Structure of Subsidiary Company (edit) To: President, The Stock Exchange of Thailand T.K.S. Technologies Public

1 -Translation- Ref :IR 62/023 December 23, 2019 Subject: Change in Shareholding Structure of Subsidiary Company (edit no.2 ) To: President, The Stock Exchange of Thailand T.K.S. Technologies Public

. After this situation, Vibharam will change status from Associated to Subsidiary Company of Ramkhamhaeng. Detail of the transactions are as follow. 1. Transaction date With in January, 2020. 2. Parties

; - FX gain of 532 million Baht; - the adjustment of the provision for rental assurance of OFCs of JASIF due to the change of the assumption (rental rate increase), amounting 497 million Baht; 2/2 and

greatly contracted by trade impacts and the higher For three months For nine months Consolidated financial statement ended 31st December ended 31st December Oct - Dec 2019 Oct - Dec 2018 Change % Change Apr

month period ended 31 March 2020 and 2019 are as follows; Unit: THB million Q1-2020 Q1-2019 % Change 1. Revenue from sales and contract work 4.7 3.2 44.2% 1.1 Turnkey Total Solutions 4.7 3.2 44.2% 2

Apparent Finished Steel (Unit : Tons) Quarter 1/2019 Quarter 1/2020 % Change Production 1,998,519 2,017,445 0.95% Import 2,856,359 2,680,405 -6.16% Export 401,798 301,219 -25.03% Consumption 4,453,080

alternative for consumers. Consolidated Q1/ 2020 Q1/ 2019 Change Financial Statements (Million Baht) (%) (Million Baht) (%) (%) Revenue from Sales 1,110.0 100.0 % 1,280.3 100.0 % (13.3 %) Cost of Sales (808.1