No. WHAUP-CS014-2562 1 8 August 2019 Re Share Acquisition in Duong River Surface Water Plant JSC in Vietnam Dear President The Stock Exchange of Thailand WHA Utilities and Power Public Company

million, results include the planned River Wing renovation works which significantly reduced available room inventory for sale. The target opening in October 2019 has been delayed, however the risk

Chonburi and Chachoengsao areas 8. Upgrade Chachoengsao pump station to increase pumping capacity from Bangpakong River from 200,000 CMD to 300,000 CMD 9. Stockpile water from Bangpakong river into Bangphra

revenue 1Q/2020 1Q/2019 Change THB mn % THB mn % THB mn % The River - - 42.8 2.9 (42.8) (100.0) UNIXX South Pattaya 1.6 0.4 7.1 0.5 (5.5) (77.5) Mews Yen Akat 41.0 9.7 53.8 3.7 (12.8) (23.8) The Lofts Asoke

operate the project and has profit as agreed during the period of agreement after Phase 2-4 start to operate water distribution. HECH would purchase more GS’s share in the future from exisiting shareholder

showed a decrease of Baht 134.8 million or 25.3% compared to the same period last year, primarily due to the delay completion of River Wing renovation project to mid-2020. This had an impact upon the

part in the Forum. The collaboration will help boosting development of academic works and greater knowledge distribution to the public which is beneficial to Thai society. We appreciate the SEC for

decreased by Baht 217.1 million or 49.0% compared to the same period last year which was resulted from the renovation of the River Wing building that included the closure of 338 guestrooms, Verandah

income for the first quarter ended 31 March 2019 decreased by Baht 158.2 million or 22.9% compared to the same period last year which was resulted from the renovation of the River Wing building that

220.9 million or 55.4% compared to the same period last year which was resulted from the renovation of the River Wing building that included the closure of 338 guestrooms, Verandah, Riverside Terrace, and