Meeting / Workshop

The 18th WEPA Annual Meeting

20 February 2023


The 18th WEPA Annual Meeting and the International Workshop were held in Siem Reap, Cambodia, on February 8 and 10, 2023, jointly hosted by the Ministry of Environment of Japan and the Ministry of Environment of Cambodia. At the annual meeting on the first day, WEPA partner countries made presentations on the progress of water environmental governance focusing on industrial wastewater. It is understood that countries would work on water environmental governance with a focus on "compliance with the law“ in the fourth phase. The international workshop was for sharing information on the current status, challenges, and solutions for industrial wastewater management in WEPA partner countries through a questionnaire survey conducted at the end of 2022. It began with a keynote speech by a WEPA advisor, followed by reports of the initiatives in WEPA partner countries and a major beverage company. Of the 13 countries scheduled to participate in the meetings, 10 countries participated in Siem Reap, 2 countries participated online, and 1 country did not participate.

Angkor Paradise Hotel, Siem Reap, Cambodia・Online (Hybrid)
WEPA Advisory Board Members, WEPA partner countries (12 countries) and experts from Cambodia, Indonesia, and Lao PDR
Ministry of Environment, Japan
Ministry of Environment, Cambodia
WEPA Secretariat
Chairperson of the Annual Meeting
Prof. Mitsumasa Okada (Chairman of WEPA Advisory Board, Professor Emeritus of Hiroshima University)
Moderator of the International Workshop
Pankaj Kumar(WEPA Secretariat)

Program and presentation materials (Annual Meeting on 8 February)

Opening remarks

Opening remarks

Mr. Michihiro Oi (Director, Water Environment Division, Environmental Management Bureau, Ministry of the Environment, Japan)

Opening remarks

Prof. Mitsumasa Okada (Chairman of WEPA Advisory Board)

H.E. Chea Sina (Under secretary of state, Ministry of Environment, Cambodia)

Session 1: Progress of WEPA activities in FY2022

Report from WEPA Secretariat

Kazuyuki Yagi (WEPA Secretariat)

Report of WEPA Action Program in Cambodia

Mr. Him Chandath (Ministry of Environment, Cambodia) and Dr. Khoeurn Kimleang ( Institute of Technology Cambodia)

Report of WEPA Action Program in Myanmar

Ms. Mya Thander Khin  (Ministry of Natural Resources and Environmental Conservation, Myanmar)

Report of WEPA Action Program in Lao PDR
Dr. Phengxay Deevanhxay (National University of Laos)


Session 2: Updates on Industrial Wastewater management in WEPA Partner Countries





Q & A





Republic of Korea

Sri Lanka


Viet Nam

Q & A

Session 3: General Discussion and Future Plan in FY2023

General Discussion

Plans of future activities

Kazuyuki Yagi (WEPA Secretariat)

Closing remarks

Prof. Mitsumasa Okada (Chairman of WEPA Advisory Board)

Program and presentation materials (International Workshop on 10 February)

Opening remarks and Framing presentation

Kazuyuki Yagi (WEPA Secretariat)

Keynote presentation

Living in Harmony with Water: “Sustainable Man and Biosphere Systems”

Prof. Motoyuki Suzuki (Professor Emeritus, The University of Tokyo, WEPA Advisory Board Member)

Case study 1

From end-of-pipe solutions to circular economy approach to industrial wastewater management in Asia – Case studies in seafood processing and textile industry

Ngoc-Bao Pham (WEPA Secretariat)

Case study 2

Wastewater management in a beverage industry in Cambodia

Mr. Vathanak Sung and Ms. Heng Helen (The HEINEKEN Company, Cambodia Brewery Limited)

Case study 3

Implementation of TMDL approach to industrial wastewater management in Indonesia

Prof. Tjandra Setiadi (Institut Teknologi Bandung, Indonesia)