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

เลขที่ WHAUP-CS014-2562 1 วนัท่ี 8 สงิหาคม 2562 เร่ือง การเข้าซือ้หุ้นในบริษัท Duong River Surface Water Plant JSC ประเทศเวยีดนาม เรียน กรรมการและผู้จดัการ ตลาดหลกัทรัพย์แหง่ประเทศไทย บริษัท ดบับลวิ

9.00 a.m. at the River Safari Restaurant, located at 99 Panyaintra Road, Samwatawantok, Klongsamwa, Bangkok. The agenda of the Meeting will be the following: Agenda 1 To adopt the Minutes of the

approved to convene the Annual General Meeting of Shareholders for 2020 (AGM) on 29 March 2020, at. 9.30 a.m. at Krungthorn Ballroom, the Royal River Hotel, 219 Soi Charansanitwong 66/1, Charansanitwong Rd

Road, crosses under the Chao Phraya River at Pak Khlong Talat, and runs along Issarapab Road. Then, the line changes to elevated structure and head to Tha Phra intersection, which intersects with the MRT

IV Road to Charoen Krung Road, passing Wat Mangkon Kamalawat and Wang Burapa. The route then enters to Sanam Chai Road, crosses under the Chao Phraya River at Pak Khlong Talat, and runs along Issarapab

Krung Road, passes Wat Mangkon Kamalawat and Wang Burapa. The route then enters to Sanam Chai Road, crosses under the Chao Phraya River at Pak Khlong Talat, and runs along Issarapab Road. Then, the line

: THB mn) Q4/18 Q4/17 2018 2017 Revenue % of total revenue Revenue % of total revenue Revenue % of total revenue Revenue % of total revenue North Point - - - - 100.0 3.0% - - The River 43.2 2.9% 51.9 11.5

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

project, Run-of-River. The project is located on the Mekong River in Xayaburi Province of the Laos People’s Democratic Republic (Laos PDR). The project has entered into the PPA with Electricity Generating