No. BGRIM 2/2019 January 15, 2019 Subject: Additional Investment in Nam Che Hydro Power Co., Ltd. Attn: President The Stock Exchange of Thailand On January 14, 2019, the Board of Directors’ Meeting

, compared to the same period last year, comes mainly from the increase in electricity generating to the EGAT’s system of hydro-power project due to the more amount of water while there was a drought in 2016

profit from investment in associated companies and joint venture in Q2/2017, comparing to the same period last year, comes mainly from the increase in electricity generating to the EGAT’s system of hydro

in Q3/2017, compared to the same period last year, comes mainly from the increase in electricity generating to the EGAT’s system of hydro-power project due to the more amount of water while there was a

last year, comes partly from the decrease in electricity generating to the EGAT’s system of hydro-power project. Moreover, there is an adjustment of accounting record in the previous year which, then

October 2017 Subject: Notification of the Board of Directors No. 9/2017 on the Company Investment in SUT Hydro Company Limited To: The President The Stock Exchange of Thailand Pursuant Following Hydrotek

increase in electricity generating to the EGAT’s system of hydro-power project due to the more amount of water. Please be informed accordingly. Yours faithfully, (Mr.Pijayaphong Na Bangxang) President

same period last year, comes from the decrease in revenue from both of electricity generating project. The decrease in revenue of the hydro-power project is caused by the drought in November and December

from the water supply contract from subdistrict administrative organization in Tambon Mai- Khao ,Amphoe Thalang, Phuket with Hydro Enterprise & Aqua Design company Limited (HYDRO), subsidiary of GS in

Phang Nga. The water supply contract is in the area of Tambon Mai-Khao, Thalang District, Phuket, by Hydro, which is a subsidiary of GS for the period of 30 years. The water supply is expected to be