氧化铝期货交割单位是多少吨

Core Viewpoint - The article outlines the delivery process and specifications for aluminum oxide futures, emphasizing the importance of compliance with standards and the structured delivery timeline [1][2][3][4] Group 1: Delivery Specifications - The delivery unit for aluminum oxide futures is set at 300 tons per standard warehouse receipt, and delivery must occur in whole multiples of this unit [1] - Aluminum oxide, also known as alumina, is primarily produced from bauxite through Bayer and sintering processes, with approximately 95% of global production used for electrolytic aluminum smelting [1] Group 2: Delivery Process - After the last trading day of the aluminum oxide futures contract, all open positions must be settled through physical delivery, managed by members on behalf of clients [2] - The delivery period spans two consecutive working days following the last trading day, designated as the first and second delivery days [3] - On the first delivery day, buyers must submit their intent to the exchange, detailing the type, grade, quantity, and designated warehouse, while sellers must submit valid standard warehouse receipts [3] - On the second delivery day, the exchange allocates standard warehouse receipts to buyers based on a set of principles including time priority and quantity rounding [3] Group 3: Payment and Settlement - Buyers are required to pay for the goods and obtain standard warehouse receipts by 14:00 on the second delivery day, while sellers receive payment from the exchange by 16:00 on the same day, with possible extensions in special circumstances [4]