广期所：调整工业硅、多晶硅、碳酸锂期货相关合约的涨跌停板幅度、交易保证金标准、交易手续费标准和交易限额

Core Points - The Guangxi Futures Exchange has announced adjustments to the trading rules for industrial silicon, polysilicon, and lithium carbonate futures contracts, effective from July 25, 2025 [1][2] Group 1: Trading Limits and Margin Requirements - The price fluctuation limit for industrial silicon futures contracts will be adjusted to 8%, with speculative trading margin set at 10% and hedging margin at 9% [1] - The daily opening position limit for non-futures company members or clients in industrial silicon and polysilicon futures contracts is capped at 3,000 lots [2] Group 2: Transaction Fees - The transaction fee for industrial silicon futures SI2509 will be adjusted to 0.025% of the transaction amount, with the same rate applied for intraday closing positions [1] - The transaction fee for polysilicon futures PS2509 will be set at 0.04% of the transaction amount, and the same applies for intraday closing positions [1] - The transaction fee for lithium carbonate futures LC2509 will be adjusted to 0.016% of the transaction amount, with the same rate for intraday closing positions [1]