, communication system works due to the most work delivered. The revenue from sale business of the 1st quarter of year 2019 Baht 57.10 million was decreased of Baht 246.63 million or 81.20% from the revenue from

3,358.62 million of the year 2018. The significant decreasing came from the reduction of the revenues from construction works of substation, communication system works, renewable energy plant. The revenues

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

sale radio and communications system and internet of thing (IoT) amounting to Baht 91.09 million, revenue from services on radio and communication system and Internet of Thing (IoT) amounting to Baht

Baht 212.05 million, revenue from services on radio and communication system and Internet of Thing (IoT) amounting to Baht 25.27 million, and services income from waste water management services

communication system works. In the six-month period of 2020 was Baht 895.82 million was decreased of Baht 546.94 million or 37.91% from the services business revenues of Baht 1,442.76 million of the six-month

electrical equipment, while revenue from sale telecommunication tower decrease due to the communication system 4G end of the investment. 2. Gross profit: The total gross profit of the year 2018 was Baht 460.41

of year 2018. The revenue was decreased from the revenue of sold electrical equipment and the revenue from the sold telecommunication towers because the communication system 4G is coming to the end of

3rd quarter of year 2018. The revenue was decreased from the revenue of sold electrical equipment and the revenue from the sold telecommunication towers because the communication system 4G is coming to

telecommunication towers because the communication system turning to 5G. 2. Gross profit : The total gross profit of the quarter 1/2020 was Baht 107.60 million representing a decreased of Baht 15.69 million or 12.73