The European Union's proposal to ban industrial carbon credits from 2013 will hurt the interests of developing and developed countries if it comes into effect, said a Chinese official.

Xie Fei, a director of China Clean Development Mechanism (CDM) Fund, said there should be "consistency and fairness" in the EU's emission trading policy to ensure a stable carbon market.

Any policy fluctuations will hurt players on both sides, with China mostly affected, Xie, whose organization is under the Ministry of Finance, told China Daily.

"Industrial gas CDM projects contribute a lot to greenhouse gas emission reduction and are beneficial for both buyers and sellers.

"It is a pity that such projects are facing uncertainties or phasing out due to the possible discriminatory policies."

Europe has the world's largest carbon market and buys most of the carbon credit generated by CDM. CDM is a market-based mechanism under the Kyoto Protocol, allowing industrialized countries to meet their emission reduction targets at low cost by buying credits from developing countries.

Carbon credits produced by CDM projects of decomposing hydrofluorocarbon (HFC) 23 and adipic acid nitrous oxide comprise 70 percent of the global CDM market, mostly in China and India.

About 11 of the world's total 19 HFC 23 projects and two of the four adipic acid nitrous oxide projects are in China.