According to the query of the Chinese government website, the "Measures for the Administration of Carbon Emission Trading (Trial)" issued by it shows that carbon indicators, namely carbon emission rights, refer to a certain amount of greenhouse gas emissions and can be traded in the market. There are many ways to trade carbon indicators, including agreement transfer, one-way bidding and auction. Agreement transfer refers to the transaction price and quantity determined by both parties through negotiation, and then registered on the trading platform. One-way bidding means that the trading platform publishes a certain amount of carbon index supply or demand, and both parties compete for the transaction through quotation. Auction means that the trading platform regularly organizes the public sale or purchase of carbon indicators, and determines the trading results according to the principle of price priority.

At present, China has established a national carbon emission trading market, covering 2225 key emission units in the power generation industry. These units need to report the greenhouse gas emissions of the previous year before March 3 1 every year, and pay the corresponding carbon emission quota before June 30 every year. If the quota is insufficient, it can be purchased through the national carbon emission trading system; If the quota is surplus, it can be sold through the same system. Shanghai Environmental Energy Exchange Co., Ltd. is responsible for the operation and maintenance of the national carbon emission trading system and provides services such as account opening, registration and settlement.