Ms. Suchanya Lapwisuthisin Miss Suchanya Lapvisuthisin as the managing director responsible for the operation of Union Gas, aided and abetted Mr. Suriya Lapvisuthisin, Mr. Sonthaya Noicharoen and Mr

securities trading but has also been dedicated to fostering sustainable capital market development while expanding opportunities and driving positive change across multiple dimensions of Thai society—aligning

amortization Operating highlight in Q1/2018 Q1/17 Q4/17 Q1/18 Change +/(-) (THB million) QoQ YoY Operating revenue 5,366 4,849 5,716 18% 7% Gross profit 1,098 1,315 1,647 25% 50% EBITDA 915 1,137 1,482 30% 62

., BANGKAE, BANGKAE, BANGKOK, THAILAND. 10160 Tel: 02-455-2888 Fax: 02-455-2763 (“TRANSLATION”) TG 048/61 February 27, 2018 Subject: Clarification of the Operating Result for the significant change Attention

., BANGKAE, BANGKAE, BANGKOK, THAILAND. 10160 Tel: 02-455-2888 Fax: 02-455-2763 (“TRANSLATION”) TG 032/2562 February 27, 2019 Subject: Clarification of the Operating Result for the significant change Attention

., BANGKAE, BANGKAE, BANGKOK, THAILAND. 10160 Tel: 02-455-2888 Fax: 02-455-2763 (“TRANSLATION”) TG 082/2562 May 15, 2019 Subject: Clarification of the Operating Result for the significant change Attention: The

., BANGKAE, BANGKAE, BANGKOK, THAILAND. 10160 Tel: 02-455-2888 Fax: 02-455-2763 (“TRANSLATION”) TG 111/2561 May 14, 2018 Subject: Clarification of the Operating Result for the significant change Attention: The

., BANGKAE, BANGKAE, BANGKOK, THAILAND. 10160 Tel: 02-455-2888 Fax: 02-455-2763 (“TRANSLATION”) TG 154/2561 August 8, 2018 Subject: Clarification of the Operating Result for the significant change Attention

., BANGKAE, BANGKAE, BANGKOK, THAILAND. 10160 Tel: 02-455-2888 Fax: 02-455-2763 (“TRANSLATION”) TG 209/2561 November 12, 2018 Subject: Clarification of the Operating Result for the significant change Attention

change from the same period of prior year. Gross Margin for construction service still be the same as previous year. As at 30 June 2017, the Group has backlog for construction service in oil and gas sector