空调行业“铝代铜”问题再引关注，格力董明珠最新回应

Group 1 - Gree Electric's Chairman Dong Mingzhu reiterated the company's stance against using aluminum instead of copper in air conditioning, citing that aluminum has not yet reached the same technical standards and reliability as copper [1][2] - The company acknowledges the rising copper prices and the potential cost benefits of using aluminum, which is significantly cheaper, but emphasizes that the performance and reliability of aluminum have not been sufficiently proven [1][2] - Gree Electric has stated that copper constitutes about 20% of the cost of air conditioners, and while aluminum costs about one-tenth of copper, its physical properties such as thermal conductivity and corrosion resistance are inferior [1][2] Group 2 - China is the largest producer and consumer of air conditioners globally, but it relies on imports for about 80% of its copper, while it produces 60% of the world's electrolytic aluminum, indicating a stronger control over raw material supply [2] - The air conditioning industry is accelerating the development of standards for aluminum use, but there are significant technical challenges, particularly in compensating for aluminum's performance shortcomings compared to copper [2] - A group of leading air conditioning companies, including Haier, Midea, and TCL, has committed to a self-regulatory agreement regarding the use of aluminum heat exchangers, although Gree Electric did not participate in this initiative [3]