# Hyosung Heavy Industries invests 100 billion won in extra-high-voltage breaker plant in Changwon

Hyosung Heavy Industries will build a new export-only extra-high-voltage circuit breaker plant and expand related production equipment in Changwon, South Korea, with a total investment of 100 billion won. The plant is targeted for completion in the first half of 2026 and will raise breaker capacity to about 1.5 times the existing level.

- Type: Investment
- Announced: 2025-09-24
- Where: Changwon, Gyeongnam, South Korea
- Value: $74.0M (100.0B KRW)
- Status: announced
- Capacity: About 1.5 times existing extra-high-voltage breaker capacity
- Products: extra-high-voltage circuit breakers, insulating materials for breakers
- Sectors: [Electrical Equipment](https://endata.com/sectors/electrical-equipment.md)

## Companies

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

## Sources

- [m-i.kr](https://www.m-i.kr/news/articleView.html?idxno=1286112), 2025-09-24: "효성중공업은 경남 창원에 수출용 초고압차단기 전용 생산공장을 신축하고 관련 생산설비를 증설하기 위해 총 1000억원을 투자한다고 24일 밝혔다."

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