POSCO Holdings to Boost Stake in Black Rock Mining to 19.9% with $40 Million Equity Investment
Reuters
Oct 13, 2025
POSCO Holdings to Boost Stake in Black Rock Mining to 19.9% with $40 Million Equity Investment
POSCO Holdings Inc. is set to increase its stake in Black Rock Mining through a $40 million investment agreement scheduled for completion in September 2024. This move will raise POSCO Group's ownership in Black Rock Mining from 7.45% to 19.9%. The investment is part of a broader strategy to secure a stable supply of natural graphite from the Mahenge mine in Tanzania, with commercial production expected to begin in 2028. POSCO INTERNATIONAL, a key subsidiary, will receive 60,000 tons of natural graphite annually for 25 years, significantly enhancing the group's self-sufficiency in raw materials for secondary battery production and strengthening Korea's supply chain for critical minerals.
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