In order to secure liquidity in the emission trading market and respond to emergencies such as soaring prices, 19 million tons were prepared in addition to the total emission permits. In the 2nd allocation plan, a paid quota system was introduced for the first time, 97% of which are allocated free of charge to 26 types of businesses, including power generation companies, among a total of 63 sectors, and the remaining 3% is allocated for a fee through auctions. However, 100% will be allocated free of charge as before for the 37 industries* that have a significant impact on international trade or increase in production costs when allocating for a fee.