In the spot market, the mainstream transaction price this morning was 140000-142500 yuan / ton, and there were a small amount of low-cost sources near the market at 139,800 yuan / ton. Today, the focus of the Shanghai futures tin 2001 contract to lighten up positions continues to rise. The spot price of the market rose significantly. Most of the downstream companies maintain a wait-and-see attitude in the morning except for a small amount of replenishment. The overall trading atmosphere in the Shanghai-Tibet spot market is generally weak. For the Shanghai contract tin 2001 contract, Yun tin premium was 700-1000 yuan / ton, ordinary cloud word discount was 100-300 yuan / ton, small-brand discount was 500-800 yuan / ton, and some market discounts were 1,000 yuan / ton. Low-cost sources nearby.