SHANGHAI, June 30 (SMM) – In the Shanghai physical market, copper was offered Monday at a RMB 180-300/mt premium over the SHFE front-month copper contract. Traded prices were RMB 50,680-50,740/mt for standard-quality copper and RMB 50,740-50,840/mt for high-quality copper. As SHFE copper prices hovered in narrow ranges on Monday, some cargo holders moved goods normally in the last trading day of June, with sufficient supply in the overall market. A majority of these cargo holders, however, held prices firm, expecting physical premiums to rise further on Tuesday. Middlemen stayed on the sidelines against tight liquidity at the end of June, and downstream producers largely purchased only to need since they regarded prices above RMB 50,000/mt as a little high.