
Dong Nai transmission transformer plant
Nhon Trach 3 Industrial Park, Dong Nai
- Voltage up to
- 220kV
- 220kV – 250MVA
- 3 units/month
- 110kV
- 10 units/month
MEE Power Transformer Manufacturing Joint Stock Company
More than a decade of designing, building and supplying transmission transformers for Vietnam’s power grid.
A message to our customers
MEE Power Transformer Manufacturing JSC would like to sincerely thank our customers for their trust and partnership over more than a decade.
With the mission of providing comprehensive, high-quality solutions in transmission transformers and auxiliary equipment, MEE keeps innovating, investing in modern technology and developing a highly skilled engineering team, becoming a trusted partner of many leading companies in the power sector.
Guided by “Safety – Quality – Efficiency”, MEE aims not only to be a leading supplier but a strategic partner on our customers’ long-term journey.
Mr. Nguyen Trong DinhGeneral Director
To be Vietnam’s leading transmission transformer manufacturer, reaching international markets.
To provide safe, high-quality and efficient power transmission solutions, contributing to national energy security.
Our journey
On 13 December 2012, Dong Anh Manufacturing Electrical Equipment JSC (DONGANHMEE) was founded in Dong Anh town, Hanoi, marking its first step into electrical equipment manufacturing.
Read the articleFactory No. 1 was built on 4,000m² in Dong Anh, producing mechanical components for the power sector and laying the foundation for transformer manufacturing.
Factory No. 2 opened in Nhon Trach 3 Industrial Park, Dong Nai, dedicated to 110kV–220kV transmission transformers. It also houses the company's ISO/IEC 17025 accredited laboratory (VILAS 1247).
A 63MVA – 115/23kV transformer passed short-circuit withstand tests (10 Oct – 2 Nov 2017) and received Intertek ASTA Certificate No. 21488 under IEC 60076-5.
The company joined GELEX Group, opening a new phase of investment in manufacturing capacity and brand development in the power sector.
A 220kV – 250MVA autotransformer was built and passed short-circuit withstand tests (Dec 2019 – Apr 2020, Intertek ASTA-TYPE-000181) – a major technological milestone. The same year, the company laboratory was accredited as VILAS 1247 (18 Oct 2019).
From 18 July 2023, the company was officially renamed MEE Power Transformer Manufacturing JSC (MEEPOWER), affirming a new vision and a commitment to sustainable growth.
MEEPOWER became one of Vietnam’s leading transmission transformer makers and one of the leaders of the national 110kV transformer market. In 2024 the company was also certified to ISO 9001:2015 and TCVN 6306-1:2015 (IEC 60076-1:2011).
Two 220kV – 250MVA transformers were energized at Binh Tan 220kV substation and accepted by Ho Chi Minh City Power Corporation, proving international-standard capability.
Read the articleA 250/250/50MVA – 225/115/23kV transformer was tested at the Key Laboratory for High Voltage Techniques (HVLAB – Institute of Energy) to IEEE C57.152 and IEC 60076-1/-3/-10/-18, passing all items.
2012 · The journey begins
Our people
Our engineers are rigorously trained and regularly attend specialist courses in Vietnam and abroad, led by experts in 110–220–500kV transformers with over 20 years of experience.

Manufacturing capacity

Nhon Trach 3 Industrial Park, Dong Nai

Dong Anh, Hanoi
Production & testing capability
Test equipment is periodically verified and calibrated.
Licences & certificates
ASTA short-circuit test certificate, 250MVA transformer (Intertek)
ASTA short-circuit test certificate, 63MVA transformer (Intertek)
ISO 9001:2015 – production, supply & repair of power transformers (valid to 30 Jun 2027)
TCVN 6306-1:2015 (IEC 60076-1:2011) conformity – 3-phase transformers up to 250MVA, 220kV
VILAS 1247 – ISO/IEC 17025:2017 accredited test laboratory (valid to 22 Mar 2031)
Construction capability certificate
Top 100 Famous Vietnamese TrademarksIn the press
We welcome engineers, technicians and specialists who share our passion for the power industry.