# Hyosung Heavy Industries breaks ground on HVDC transformer plant in Changwon, South Korea

Hyosung Heavy Industries held a groundbreaking ceremony for a new voltage-source HVDC transformer plant at its Changwon factory in South Korea. The plant will be built on 29,600 m², with completion scheduled for July 2027, and total investment of KRW 330 billion over two years.

- Type: New facility
- Announced: 2025-07-30
- Where: Changwon, South Korea, South Korea
- Value: $237.0M (330.0B KRW)
- Starts operating: Jul 2027
- Status: under construction
- Capacity: 20% increase in total transformer production capacity at Changwon plant
- Products: voltage-source HVDC transformers
- Sectors: [Electrical Equipment](https://endata.com/sectors/electrical-equipment.md), [Power Generation Equipment](https://endata.com/sectors/power-generation-equipment.md)

## Companies

- [Hyosung Heavy Industries](https://endata.com/companies/5898.md)

## Sources

- [hyosung.com](https://www.hyosung.com/en/newsroom/view/18938), 2025-07-30: "효성중공업은 대한민국을 대표하는 에너지 솔루션 리더로서 HVDC 기술 국산화를 선도해 'K-전력'의 위상을 떨칠 역량과 경험을 갖추고 있다."
- [koreajoongangdaily.com](https://www.koreajoongangdaily.com/business/hyosung-heavy-industries-breaks-ground-on-new-changwon-factory-for-hvdc-transformers/12102391), 2025-07-30: "Once completed in July 2027, the facility will be Korea’s largest domestic base for voltage-source HVDC transformers, Hyosung said."
- [yna.co.kr](https://www.yna.co.kr/view/AKR20250730045751003), 2025-07-30: "효성중공업은 공장 신축 약 2천540억원을 포함해 HVDC의 핵심 설비인 '대용량 전압형 컨버터 시스템' 제작시설 증축, 연구개발(R&D) 과제 수행 등 HVDC 사업을 위해 향후 2년간 총 3천300억원을 투자할 계획이다."

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Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.