Group 1 - The upcoming National Day and Mid-Autumn Festival holidays have prompted exchanges to adjust trading rules for various futures contracts [1] - The Shanghai Futures Exchange has set new price fluctuation limits and margin requirements for multiple futures contracts starting from September 29 [2] - The Dalian Commodity Exchange has also announced adjustments to price limits and margin levels for various futures contracts effective from September 29 [5] Group 2 - The Shanghai International Energy Exchange has adjusted the price fluctuation limits and margin requirements for international copper and crude oil futures contracts [3] - The Zhengzhou Commodity Exchange has specified new margin standards and price fluctuation limits for several agricultural and industrial futures contracts starting from September 29 [4] - The adjustments include a range of commodities, with specific percentages for price limits and margin levels across different contracts [2][3][5]