Copper - LME copper market was closed. Overnight, the most-traded SHFE 2407 copper contract opened at 83,900 yuan/mt, hitting a session low of 83,860 yuan/mt at the beginning, then reaching a high of 85,010 yuan/mt before closing at 84,940 yuan/mt, with a gain of 1.34%. Trading volume reached 69,000 lots, and open interest reached 208,000 lots.

Aluminum - The most-traded SHFE 2407 aluminum contract opened at 20,925 yuan/mt, reached a high of 21,215 yuan/mt, a low of 20,925 yuan/mt, and closed at 21,160 yuan/mt, up 160 yuan/mt or 0.76%. Due to the UK Spring Bank Holiday, the London Metal Exchange (LME) was closed on Monday (May 27) and will resume trading on Tuesday.

Lead - Overnight, LME lead was closed on Monday due to the UK Spring Bank Holiday. Overnight, the most-traded SHFE 2407 lead contract opened at 18,625 yuan/mt, initially rose and stabilized at around 18,700 yuan/mt, then consolidated sideways. Before the close, it reached a high of 18,770 yuan/mt and finally closed at 18,755 yuan/mt, up 215 yuan/mt or 1.16%.

Nickel - On May 27, Jinchuan nickel was at a premium of 1,000-1,200 yuan/mt, with an average of 1,100 yuan/mt, down 50 yuan/mt from the previous trading day. Russian nickel was at a discount of 200 to 600 yuan/mt, with an average of 400 yuan/mt, up 50 yuan/mt from the previous trading day. In the morning, the market slightly rebounded along with the overall non-ferrous metals sector, but remained within the range of 150,000-155,000 yuan/mt. The spot market transactions were still mainly driven by essential procurement. Nickel briquette prices were 149,900-150,400 yuan/mt, up 1,050 yuan/mt from the previous trading day. The price gap between nickel briquette and nickel sulphate was about 1,286 yuan/mt (nickel sulphate prices were 1,286 yuan/mt lower than nickel briquette prices).