The intraday trading activity decreased compared to yesterday, mainly due to the SMM CCIE, where most traders were concentrated on-site, and suppliers stood firm on quotes to sell. At the beginning of the morning session, standard-quality copper with a premium of 150 yuan/mt was quickly snapped up. After a small amount of low-priced goods were instantly sold, the mainstream quotations for standard-quality copper rose to a premium of 160-180 yuan/mt. Following the transaction of high-quality copper, such as Jinchuan , with a premium of 170 yuan/mt, the mainstream quotations increased to a premium of 180-200 yuan/mt.