Focusing on the strategic link of purchasing commodities, Wal-Mart took great pains to develop and cultivate the core competence.

The author points out that in order to coordinate investment and become competitive advantage in China market,accomplish the global strategy profit,MNEs make use of value chain theory,grasp the "strategy link" of value chain themselves,transfer the "non-strategy link" of value chain to China s enterprises.

Combined with the binding directive of the GDP s energy consumption reduced by about twenty percent which proposed during the eleventh five years plan, put forward five energy-saving strategy,they are management, production, logistics, information and technology strategy.

The article discusses the necessity of application of circular economy concept in regional strategic environmental assessment,puts forward the outlines and basic principles on eco-industrial zones aiming at the existing problems in the economic and industrial structure and under the construction of principle of circular economy development by taking Beijing new city of Yizhuang as an example.

Based on the analysis of the successful strategic environmental assessment (SEA) in foreign countries, this paper suggested to establish the legal system by legislation, improve the rules for SEA and pushon SEA substantially.

The connotation,purposes and significance in the strategic environmental assessment of urban master planning are summarized and emphasized.