SHANGHAI, May 28 (SMM) -- Next week, zinc prices will continue to be affected by Greece's political stability, while the US dollar index should rise further and consolidate at the 82 level. LME zinc prices should find support at USD 1,850/mt and SHFE zinc prices should test RMB 14,200/mt. Spot prices are expected to be RMB 0-30/mt higher than futures prices, but cash flow problems at the end of the month will constrain spot transactions.