SHANGHAI, Jul. 7 (SMM) – SHFE 1709 zinc opened at RMB 22,750/mt today and then hovered around RMB 22,750/mt. In the afternoon, SHFE 1709 zinc strengthened and stopped rising at RMB 22,850/mt, and closed at RMB 22,925/mt, up 1.04%. Trading volumes on SHFE 1708 zinc increased 5,800 to 245,000 lots, and positions increased 8,236 to 267,000. SHFE 1708 zinc will test RMB 23,000/mt this evening.