Copper futures at Shanghai Futures Exchange near limit down, following Friday's 4% losses in LME 3-month; but "market sentiment not very pessimistic, as lower prices and pre-holiday stockpiling prompt more buying on spot market, underpinning cash values, and triggering short-covering", says Dalu Futures analyst Wang Zheng; adds LME 3-month eyes $5,000 as support. Benchmark April contract at CNY50,130/ton, down CNY1,970. LME 3-month at $5,350/ton, +$5 from Friday's PM kerb.