SHANGHAI, Apr. 8 (SMM) – In the Shanghai physical market, copper was offered Tuesday at a premium of RMB 300-380/mt over SHFE current-month copper contract prices. Traded prices were RMB 47,520-47,580/mt for standard-quality copper and RMB 47,540-47,620/mt for high-quality copper. As SHFE copper prices trended higher, cargo holders pushed up physical premiums to some RMB 400/mt on a bullish sentiment, but speculators ramped up deliveries at high prices. High-quality copper supply increased in the market, but encountered low recognition, with physical premiums narrowing later. Downstream producers Tuesday conducted restocking in small volumes, and trading activity was just modest.