Group 1 - The Shanghai International Energy Exchange announced the trading schedule for the National Day and Mid-Autumn Festival in 2025, indicating no night trading on September 30, 2025, and a market closure from October 1 to October 8, 2025, with trading resuming on October 9, 2025 [1] Group 2 - Starting from the settlement on September 29, 2025, the margin ratios and price fluctuation limits for various futures contracts will be adjusted, including a 9% fluctuation limit for international copper futures and a 12% limit for crude oil and low-sulfur fuel oil futures [2] - The margin ratio for international copper futures will be set at 10% for hedging positions and 11% for general positions, while crude oil futures will have a 13% margin for hedging and 14% for general positions [2] Group 3 - On October 9, 2025, after the first trading day without a one-sided market, the price fluctuation limits and margin ratios for all futures contracts will revert to their original levels [2][3]