SHANGHAI, Oct. 30 (SMM) – Copper for delivery in January on the Shanghai Futures Exchange (SHFE), the most active one, opened RMB 330/mt higher at RMB 51,600/mt on Wednesday. The red metal gained upward momentum after short sellers closed positions near mid-day, and rose further to RMB 52,000/mt at the tail of the session, drawing support from a 1.3% uptick in Chinese A-share. Finally, SHFE 1401 copper contract ended RMB 810/mt or 1.58% higher at RMB 52,080/mt. Trading volumes and positions shrank by 107,000 lots and 23,088 lots, respectively.