[Zheng Shang Institute: 2406 of thermal coal futures contract margin standard is 50% limit range of 10%] June 6, Zheng Shang decided that matters related to the thermal coal futures 2406 contract are announced as follows: the trading margin standard is 50%, the limit range is 10%. If the trading margin standard and the limit of rise and fall implemented in accordance with the rules are higher than the above-mentioned standards, the original provisions shall still be followed. The maximum number of non-futures company members or clients who open positions in a single day is 20 lots. The number of open positions in a single day refers to the sum of the number of open positions bought and sold on a single futures contract by non-futures company members or clients on the same day. The maximum number of single-day opening transactions in the actual control relationship account group is carried out according to a single customer. The number of open positions in hedging transactions and market-making transactions is not limited by the trading limit.