June 12, 2017, coke (1453, 28.00, 1.96%) main contract J1709 opened at 1411 yuan / ton, the highest price of 1463 yuan / ton, the lowest 1411 yuan / ton, closing at 1453 yuan / ton, compared with the previous Trading day up 28, or 1.96%, volume 160140 hand, positions 207830 hand, daily increase 8110 hands.