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Hyundai Heavy Industries

Established: 1997

Employees: 650

Activity: production of power and distribution transformers, high voltage apparatuses, tap changers, solar power systems


Global integrated heavy industry company, employing more than 24 000 people worldwide.


Operates seven business divisions: Shipbuilding, Offshore & Engineering, Industrial Plant & Engineering, Engine and Machinery, Construction Equipment, Electro Electric Systems and Green Energy.


Hyundai Heavy Industries Bulgaria exports its transformers and tap changers to more than 50 countries in Europe, Asia, America, Africa.


Vassil Kolarov power engineering and transformers plant was established in 1949 as a state enterprise. The  plant was among the largest heavy industry facilities in the country. In 1997 Hyundai Heavy Industries acquired majority stake in the company.


Hyundai Heavy Industries Co. Bulgaria manufactures oil-filled power transformers for power substations, hydro-electric & thermal power plants, industrial enterprises. All power and special transformers are equipped with Tap Changers developed and manufactured in Bulgaria. Tap Changers manufactured in Hyundai Heavy Industries Co. Bulgaria are installed in a wide range of transformers and are currently in operation in Russia, South Korea, Romania, United States and many other countries in Asia, Europe, South and North America.


Key Activities and Products manufactured in Bulgaria:

  • Power Transformers for the energy industry
  • High Voltage Apparatuses
  • Tap Changers used in power transoformers manufacturing
  • Solar Power Systems for clean energy generation