China Nonferrous Mining's stock plummeted 5.04% during intraday trading, reflecting significant downward pressure on the share price.

The decline occurred amid broad weakness across the copper sector, with several major copper stocks also trading lower. This sector-wide selling pressure has overshadowed the company's strong fundamental performance, including recently reported quarterly earnings growth.

Despite reporting estimated first-quarter net profit attributable to shareholders of approximately USD 201 million, representing a year-on-year increase of about 63%, the stock has retreated from gains made following the earnings announcement. The company's production metrics remain solid, with Q1 cathode copper output up approximately 10% year-on-year, but market sentiment toward the copper sector has turned negative in recent sessions.