Zinc futures hedging trading positions are divided into general month (referring to the last trading day of the second month before the contract is listed) and near delivery month (referring to the delivery month and the first month before the delivery month). Members or customers applying for general monthly hedging trading positions shall fill in the Application (Approval) Form of Shanghai Futures Exchange for General Monthly Hedging Trading Positions, and submit a copy of the business license of the enterprise, the spot business performance of the previous year, the spot business plan of the current year or the next year, the purchase and sale contracts or other valid vouchers corresponding to the applied hedging trading positions, the hedging trading scheme and other supporting materials required by the exchange. The application for the general monthly hedging trading position shall be made before the last trading day of the second month before the delivery month of the hedging contract, and the overdue exchange will no longer accept the application for the general monthly hedging trading position of the contract. Members or customers can apply for general monthly hedging trading positions of multiple contracts at one time. Members or customers who apply for hedging trading positions near the delivery date shall fill in the Application (Approval) Form for Hedging Trading Positions near the delivery date of Shanghai Futures Exchange and submit the certification materials required by the Exchange. The application for hedging trading position near the delivery month shall be made between the first trading day of the third month before the delivery month of the hedging contract and the last trading day of the first month before the delivery month. The overdue exchange will no longer accept the application for hedging trading position in the delivery month. Members or customers who are allowed to hedge trading positions shall open positions according to the approved trading positions and positions before the close of the third trading day of the final trading of the contracts involved in hedging. The hedging trading position shall not be reused from the first trading day of the delivery month.