[SMM Analysis: Copper Prices Rebound, Supplier's Sentiment on Selling Marginally Improves] After the holiday, copper prices oscillated within the range of 77,800-78,700 yuan/mt after a slight rebound, with a weekly increase of 500 yuan/mt. During the same period, the price of bare bright copper in Guangdong rose slightly to 72,200-72,400 yuan/mt, with an increase of 400 yuan/mt. ......