According to the analysis, the related enterprises in the value chain can increase the value of the whole chain through mutual cooperation, resource or information sharing, so as to effectively reduce the cost. But the foundation of cooperation is trust, and the higher the level of trust, the smoother the cooperation will be and the higher the value added effect will be. Therefore, YM Chemical should actively establish a cooperative relationship of trust with upstream and downstream enterprises to ensure the effective implementation of value chain cost control.