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.

“효성중공업은 경남 창원에 수출용 초고압차단기 전용 생산공장을 신축하고 관련 생산설비를 증설하기 위해 총 1000억원을 투자한다고 24일 밝혔다.”m-i.kr

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• m-i.kr효성重, 초고압차단기 전용공장 증설에 1천억원 투자 < 산업 < 경제 < 기사본문 - 매일일보Sep 24, 2025

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