Data from the National Greenhouse Gas Voluntary Emission Reduction Trading System shows that on September 18, the trading volume of certified voluntary emission reductions was 313,636 tonnes, with a turnover of 28.47 million yuan ($4.22 million), and an average trading price of 90.76 yuan/tonne. As of September 18, 2026, the cumulative trading volume of the national greenhouse gas voluntary emission reduction trading market was 23.11 million tonnes, with a cumulative turnover of 1.87 billion yuan.