She Chunming, head at Shandong's commerce department, said that trade cooperation between the province and SCO countries deepened mainly because bilateral economy became more complementary.

Russia and five countries in Central Asia are the main production areas of world's oil and gas resources while Shandong has an increasing need for energy commodities such as crude oil and natural gas and become an important sales market for the goods.

Energy cooperation has become an important factor to promote trade partnerships between Shandong and SCO members, local officials said.

Fortune Global 500 companies are also an important factor for Shandong to increase its foreign trade.