When taking about the article Tsilhqot’in set to declare site of New Prosperity mine a tribal park , we find that the Taseko company could not get the access of mine in the tribal park.In fact, it will have a huge effect on the Taseko business model .We know that there are four main points about the external facts of changing the business model : key trends ,market forces, industry forces and macro economic forces .For example , Sinopac,the Chinese oil company, met the same situation as Taseko did .Sinopack wanted to get the resource of oil in the western part of China due to the fact that the resource under the sea near Dalian has become insufficient .But we know that there are many minorities in the west of China ,they just defend the aggression of oil from Sinopac .Consequently, there are many changes in Sinopac .Firstly ,without sufficient input ,Sinopac will decrease many important social -economic trends ,which will have a great effect on the Chinese market :the supply goes down ,causing the price of equilibrium goes up .All these factors lead the demand of consumers to a low level .What’s more, it will even make the mess in the global markets because China is one of the main suppliers in the world ,which will cause that the world price of oil will be out of control. Eventually, Sinopac should find some efficient solutions such as shift into other energy production.With the development of technology , many companies can produce a lot of substitutes such as electricity . This new energy is more echo -friendly and it can prevent the impact between Sinopac and minorities. In conclusion ,external factors effect the business model and business strategies a lot of one enterprise.