From Xinhua, the official press agency of the Chinese government:
China will proactively introduce a set of new taxation policies designed to preserve the environment, including a tax on carbon dioxide emissions.
China is among the world’s largest emitters of greenhouse gas and has set goals for cutting emissions. The government has vowed to reduce carbon intensity, or the amount of carbon dioxide emitted per unit of economic output, by 40 to 45 percent by 2020 in comparison to 2005 levels.
Here’s the whole article.