上期所：铸造铝合金期货涨跌停板幅度为上一交易日结算价±3%

Core Viewpoint - The Shanghai Futures Exchange has announced the launch of aluminum alloy futures and options contracts, with specific trading rules and margin requirements set to take effect on June 10, 2025 [1]. Group 1: Contract Specifications - The trading unit for aluminum alloy futures is set at 10 tons per contract [2]. - The minimum price fluctuation is established at 5 yuan per ton [2]. - The price limit for daily trading is ±3% of the previous day's settlement price [1][2]. - The minimum trading margin is 5% of the contract value [1][2]. Group 2: Trading and Delivery Details - Trading will occur from 9:00 AM to 11:30 AM and 1:30 PM to 3:00 PM, along with other specified trading times [2]. - The last trading day for each contract month is the 15th day of that month, with adjustments for public holidays [2]. - Delivery will take place two working days after the last trading day, with a delivery unit of 30 tons [2]. - The delivery method is physical delivery, and the quality specifications for the aluminum alloy ingots are detailed in an attachment [2].