【SHFE: Adjusting Margin Ratios and Trading Limits for Gold, Silver, Copper, and Aluminum Futures】SHFE announced that starting from the close settlement on Wednesday, April 17, 2024, the trading limit for copper and aluminum futures contracts will be adjusted to 7%, the margin ratio for hedging transactions will be adjusted to 8%, and the margin ratio for speculative transactions will be adjusted to 9%. The trading limit for gold and silver futures contracts will be adjusted to 8%, the margin ratio for hedging transactions will be adjusted to 9%, and the margin ratio for speculative transactions will be adjusted to 10%.