On April 28, Chinalco Group held a ceremony to mark the full completion of the world's first 3,500mm copper and copper alloy extra-wide plate production line. This signifies the official commissioning of the world’s widest professional production line for copper and copper alloy plates, filling a gap in China's large-scale production of ultra-wide, high-end copper plates.
With a total investment of 159 million yuan, the project is designed for an annual capacity of 18,000 tons of high-performance copper and copper alloy plates. Initiated in June 2024, the project was completed in approximately 22 months. On March 15 this year, the core rolling mill successfully completed its trial run, achieving a slab processing rate of 84% and micron-level precision—demonstrating that both equipment performance and processing technology have reached world-class standards.
This new industrial capability is set to drastically enhance the core competitiveness of the copper processing industry. By providing a stable supply of high-precision materials for strategic sectors such as aerospace, shipbuilding, nuclear energy, and petrochemicals, the production line will play a vital role in ensuring the security and stability of national key industrial supply chains.
