companies. 6 Management Discussion and Analysis of Business Operation for FY2019 Bangchak Corporation Plc. | Important Events in 2019 January o Important change in accounting policy from the International

increased from business expansion. For the 9M/2018, the net profit improved by Baht 420 million or 17% from 9M/2017. The gain was primarily due to start-up of IRPC-CP Phase 2 and ISP1 in Q4/2017 and the

of SUTG and do not found the material adverse effect to the business transfer transaction and as of the business transfer date and there is no any event, circumstance or change that has or reasonably

date and there is no any event, circumstance or change that has or reasonably likely to have a material adverse effect to SUTG; (2) The Company’s Shareholders’ Meeting approves the Entire Business

days 66 69 72 Cash Conversion Cycle days 84 81 75 Finanial data and profitability ratios Sales revenues million baht 53,067 49,224 46,887 %change (%) 7.8% 5.0% (0.11%) Gross profit million baht 12,123

., BANGKAE, BANGKAE, BANGKOK, THAILAND. 10160 Tel: 02-455-2888 Fax: 02-455-2763 (“TRANSLATION”) TG 021/2563 February 27, 2020 Subject: Clarification of the Operating Result for the significant change Attention

Discussion & Analysis Q2/2021 Operating Highlights in Q2/2021 Q2/20 Q2/21 Change +/(-) 1H/20 1H/21 Change +/(-) (THB million) %YoY %YoY Operating Revenue 144 137 (5%) 363 317 (13%) Gross Profit 79 77 (3%) 216

in the previous year. The Company would like to clarify the reasons for the change in profits for 2018 compared to the previous year, as follows: 1. Revenue In 2018, the Company had total revenues, as

Million Baht equivalent 786% from the same period of previous year. Therefore the company would like to clarify that the change was caused mainly by the significan transaction as bellows 1/2 1.1 Sales and

1 / 2 IR.019/2017 15 August 2017 Re: Clarification on the change of profit and loss statement To President The Stock Exchange of Thailand T Engineering Corporation Public Company Limited (the