Chinese enterprises are stepping up investment in Russia where the market potential is huge and the investment environment has improved in recent years, experts have said.

"As Russia's key economic areas are moving to the eastern region, we will strengthen economic and trade cooperation with China. The two countries are complementary in terms of economic development," said Ivan Grachyov, chairman of Russia's State Duma Committee for Energy, during the first forum on the economic situation of BRICS countries.

Grachyov said the Chinese economy is likely to maintain sustainable growth in the long term, and China and Russia have cooperated in investments in areas such as energy, forestry, agriculture and shoe-making.