北方铜业股价下跌2.53% 半年报显示贵金属业务增长52%

Group 1 - The stock price of Northern Copper on August 18 was 11.55 yuan, down 0.30 yuan or 2.53% from the previous trading day [1] - The trading volume on that day was 1.4136 million lots, with a total transaction amount of 1.623 billion yuan [1] - Northern Copper primarily engages in copper mining, smelting, and processing, with products including cathode copper, copper wire, and copper strip [1] Group 2 - For the first half of 2025, the company reported revenue of 12.811 billion yuan and a net profit of 487 million yuan [1] - Revenue from precious metals business reached 2.529 billion yuan, a year-on-year increase of 52.04%, accounting for 19.74% of total revenue [1] - The revenue from sulfuric acid business was 102 million yuan, showing a year-on-year growth of 197.33% [1] Group 3 - The company's R&D expenses increased by 48.60% year-on-year, contributing to a 3-5 percentage point increase in gross margin for new products [1] - On August 18, the net outflow of main funds was 210 million yuan, with a net outflow of 114 million yuan over the past five days [1]