The market challenger is one important strength of branch of market competiton,three stages working out,competing for the strategy in the preparation,supplement,bringing into effect,can be guided by Sunzi Military Strategy,absorb its marrow to realize strategy target better.

As a market challenger, Beijing Telecom should have a high-performance marketing channel system, which can improve integration between direct channel and cooperation channel, can promote complementary between regional sales and industry sales, and effectively resolve the conflict.

The epoxy soybean oil because of it's superior characteristic obtains widespread application,this article introduced the epoxy soybean oil preparation present and application present situation as well as market challenge.

Research on Bank-Securities-Express Challenger Market Strategy of West China Securities Ltd.;