The minimum trading margin standard of "Haijujin" PVC futures contract is 5%. The margin for trading new positions is charged according to the trading margin at the time of settlement on the previous trading day. Trading margin shall be managed at different levels. With the approach of the delivery date of futures contracts and the increase of positions, the exchange will gradually increase the trading margin ratio. If you do futures in the form of retail investors, I don't recommend it here. You can consult if you have any questions.