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Samsung SDI is investing 9 trillion won to build a mother factory (central production base) for battery core technology development at its Cheonan site. Construction was completed in July 2025 and equipment installation began in November 2025.
“삼성SDI는 천안 사업장에 9조 원을 투자해 배터리 핵심 기술 개발을 위한 마더팩토리(중심 생산기지)를 구축한다”businesspost.co.kr
Summarized from public sources; check the original articles before acting on it.