Mining Stocks Face 7% Drop Ahead of Copper Production Expansion

Hudbay Minerals Inc. (NYSE: HBM) fell about 7% on April 28, closing near $22.70 per share on the New York Stock Exchange. Its market capitalization declined to roughly $9 billion (approximately ₩12 trillion), and trading volume exceeded 2 million shares, signaling heavier-than-normal selling pressure.

The company recently updated its reserve estimates, targeting a 24% increase in copper production by 2028 and extending the life of its key mines in Peru, Canada and the United States into the early-to-mid 2040s. However, rising short interest and a combination of profit-taking and position adjustments ahead of its Q1 earnings release on May 1 have driven heightened share-price volatility.

Headquartered in Toronto, Hudbay Minerals is a diversified, copper-focused mining company that also produces gold, silver, zinc and molybdenum in Canada, Peru and the U.S. The company has formed a joint venture with Japan’s Mitsubishi Corporation valued at about $600 million (roughly ₩800 billion) to advance the Copper World project in Arizona, as part of a growth strategy to double copper output by 2030.