氧化铝期货合约永久生效吗

Core Viewpoint - Aluminum oxide futures contracts are not permanent and have a defined validity period, typically one year, requiring users to complete delivery as per contract terms [1] Group 1: Contract Validity - Each aluminum oxide futures contract has a validity period of one year, with contracts issued in July 2024 expiring in July 2025 [1] - Users must complete delivery or close positions by the expiration date, or they may face penalties for defaulting on delivery [1] Group 2: Warehouse Receipt Validity - The standard warehouse receipt for aluminum oxide has a validity period of 180 days, applicable to both warehouse and factory receipts [1] - Warehouse receipts are valid from the earliest production date, with products needing to be stored within 60 days of production [1] - Factory receipts are valid for 180 days from the date of generation [1] Group 3: Receipt Extension Rules - According to the August 2025 business guidelines, aluminum oxide warehouse receipts cannot be extended again after the initial extension [1] - Receipts exceeding their validity period will be forcibly canceled and cannot be used for delivery or further extension [1]