Share Purchase Agreement (“SPA”) to sell 3,249,998 shares (40.51 percent of the total SBITO’s shares) was signed on July 31, 2017, in which 1,604,444 shares were sold in phase one at the price of 71.49

Amount Change Amount Change Q3.2020 Q3.2019 Amount % Q3.2020 Q3.2019 Amount % Revenue from sale – net 399.89 320.12 79.78 24.92% 392.11 319.50 72.60 22.72% Others income 4.70 6.87 -2.18 -31.64% 6.13 5.96

) successfully started commercial operation in October 2018. Therefore, total installed capacity of 3 SPP power plants which started commercial operation in 2018 is 399 MW which sell electricity to EGAT at 270 MW

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

ES) (EGCO holds a 49.00% ownership interest), located in Gangdong-gu, Seoul, South Korea with a capacity of 19.80 MW. Gangdong will sell electricity to Korea Electric Power Corporation (KEPCO), the

results for the six-month period of 2019, change of rate more than 20 percent Dear Director and Manager The Stock Exchange of Thailand According to the resolution of the Board of Directors of DOD Biotech

laws and has qualifications in accordance with the criteria for approval to sell shares. A warrant must contain the following details: Terms of a warrant: Having a definite term of not more than ten

the PPA with EGAT for 25 years with the contracted capacity of 90 MW. Additionally, the project has the 7 years contract with industrial user to sell 12 MW of electricity along with 13 tonnes per hour

sales revenue [-2%], stronger THB/USD exchange rate [-2%], change in product mix [-1%] and higher labour and salaries expenses [-1%] . Page 1 of 3 Operating Profit Analysis Year-on-year operating profits

with the capacity of 19.80 MW. Gangdong will sell electricity to Korea Electric Power Corporation (KEPCO), the sole off-taker of wholesale power generation in South Korea, through the Korea Power