郑商所：动力煤期货2701合约交易保证金标准为50%，涨跌停板幅度为10%

Group 1 - The Zhengzhou Commodity Exchange has set the margin requirement for the 2701 contract of thermal coal futures at 50% and the price limit at 10% [1] - Non-futures company members or clients are allowed to open a maximum of 20 contracts in a single trading day [1]