What is Feature Fee and Trade Matching Commission?

Feature fee includes trade matching commission and GTE( Good Till Expire) storage fee.

What is trade matching commission?
When an order is initiated, the user needs to pay the trade matching commission according to the network regulations to ensure the validity of the order. The actual commission charged is based on the executed amount of the order, and will not be refunded if the transaction is fully executed. If only part of the transaction is completed, the system will automatically refund the overcharged commission fee.

What is GTE Order?
GTE (Good Till Expire) Order refers to the order that exists before the specified number of blocks. In a centralized exchange, orders are valid for a long time, while orders in a decentralized exchange have a storage period. You can choose the storage period of the order for your own preference, and pay the corresponding storage fee required by the blockchain network to ensure the validity of the order. At present, the CET network stipulates that if the storage period of the order exceeds 1,000,000 blocks (about 30 days), the storage fee will be charged. For every each extra block stored, 0.0000001 CET will be charged. If no a block exceeds, there will be no storage fee. The actual storage fee charged is based on the actual existence time of the order. If the order is completed within the storage period, the system will automatically refund the overcharged storage fee.