Attachment of standard contract for tin futures of Shanghai Futures Exchange

I. Delivery unit

The trading unit of standard tin contract is each lot 1 ton, and the delivery unit is 2 tons per warehouse receipt. The delivery shall be an integral multiple of each warehouse receipt.

Second, the quality regulations

1. The tin ingots used in the physical delivery of this contract shall conform to the national standard GB/T728-20 10Sn99.90A, in which the tin content is not less than 99.90%.

2. Appearance and weight. The delivered tin should be ingots, and the weight of domestic tin per ingot is 25 kg 1.5 kg.

3. The overflow of each warehouse receipt shall not exceed 3%, and the increase or decrease clause shall not exceed 0. 1%.

4. The tin ingots of each warehouse receipt shall be composed of goods produced by the same manufacturer, with the same brand, the same grade, the same registered brand, the same quality, the same shape and the same package quantity (approximate bundle weight).

5. The tin ingot of each warehouse receipt shall be a brand registered by the Exchange, with quality certificate attached.

6. The warehouse receipt shall be issued by the delivery warehouse designated by the Exchange after passing the inspection.

Three. Production enterprises and registered brands recognized by the Exchange.

Tin ingots used for physical delivery must be brands registered by the exchange. The specific registered brands and premium standards shall be separately stipulated and published by the Exchange.

4. Designated delivery warehouse

Designated by the exchange and announced separately, the premium standard for warehouses delivered in different places shall be stipulated and announced by the exchange.