LME 3-month copper last at $5,575/ton, down $50 from late kerb close after NY trade, near low point but remaining within range of past week or so; Standard Bank says copper appears to be stabilizing after volatile start to year that saw it lose nearly $1,000 to almost $5,400 in first week's trade. "We would expect this to continue in the short term." Key to any future strength likely to spring from China buying, expected to increase in 2Q, 3Q; Bank notes reports China might use some of its vast forex reserves to boost strategic reserves of commodities.