开盘|商品期货开盘，BR橡胶主力合约涨超4%

Group 1 - The main futures contracts opened with significant gains, with BR rubber rising over 4%, and other commodities like coking coal, silver, coking coal, and fuel oil increasing by more than 3% [3][7] - Crude oil, PTA, liquefied gas, and methanol saw increases of over 2% [3][7] Group 2 - Aluminum alloy experienced a decline of over 2%, while both Shanghai aluminum and alumina fell by more than 1% [3][7] - Specific contract details show BR rubber at 13,780 with a 4.24% increase, coking coal at 1,185.5 with a 3.95% increase, and silver at 30,861 with a 3.79% increase [4][8]