Chinese copper smelters produced a record volume of refined metal last month as surging prices for the byproduct sulfuric acid boosted output and profitability. The China Nonferrous Metal Association reported a 12% year-on-year increase in refined copper output in March, driven by stronger acid prices that incentivized smelters to ramp up operations. This shift has significant implications for global copper markets, where demand for the metal remains robust amid infrastructure and clean energy investments.

The surge in sulfuric acid prices—up 18% annually—stems from increased demand for the chemical in industries like fertilizer production and battery manufacturing. As smelters prioritize higher copper yields to capitalize on these prices, industry analysts note improved margins despite volatile raw material costs. This dynamic has strengthened investor confidence in China’s nonferrous sector, which accounts for nearly 40% of global copper refining capacity.

The record output could alleviate short-term supply constraints, though experts caution that prolonged high demand may strain domestic resources. Major players like Chongqing Nonferrous Metals Group and Hindustan Copper have expanded acid recycling initiatives to sustain profitability. However, environmental regulations and energy costs remain critical challenges for maintaining this growth trajectory.

Market watchers emphasize that the interplay between copper and sulfuric acid markets highlights the sector’s evolving economics. With copper prices hovering near $9,000 per ton, the industry’s ability to balance output and sustainability will determine its long-term resilience. Investors are closely monitoring how these trends might influence global supply chains and pricing dynamics in the coming quarters.