core service revenue and effective cost control 2Q23 provided an EBITDA of Bt23,317mn, improved 4.3% YoY and 3.0% QoQ from core services revenue improvement combined with cost optimization especially in

up. As a result, core service revenue in 3Q18, which excluded IC and equipment rental, was Bt33,134mn, increasing 2. 1% YoY but decreasing 0. 9% QoQ. EBITDA remained growth YoY but softened QoQ Cost

Others Computer software Leasehold improvement and equipment Restricted fixed deposits Trade and other receivables Cash and cash equivalents +28% 10 7 3 4 32 30 5 4 162 120 30 Sep 2019 31 Dec 2018 Equities

In the interim financial information, the Company has reviewed and changed the estimated useful lives of buildings, machinery and equipment in accordance with their conditions and the proper estimation

business, depreciation on building improvement and equipment of the subsidiaries and impairment loss of equipment of the subsidiaries. 4 Finance cost In 3Q17, the Group has the finance cost of Baht 33

, respectively. In 4Q’18, the company’s gross margin almost unchanged yoy. For year 2018, gross margin was 31% higher than 30% of year 2017. The improvement in gross margin was contributed by more revenue portion

2021. Increase sales volume, internal cost reduction activities, productivity improvement and turnaround of Portugal contributed to the improvement of gross profit margin. Selling and administrative

3Q23. The strategy to continuously uplift the broadband services by cross-sell and up-sell resulted in an ARPU of 428 baht, an improvement of 3.2% QoQ. Mobile Business 3Q22 2Q23 3Q23 %YoY %QoQ

services on radio and communication system amounting to Baht 9.00 million, and services income from water quality improvement amounting to Baht 11.00 million. Other income for quarter 1/2020 of Baht 93.15

radio and communications system estimated at Baht 35.04 million, revenue from the sale of electricity to about Baht 23.30 million, services income from water quality improvement of Baht 28.38 million