What role does the Shanghai Cooperation Organization play in the success of the Silk Road routes?

Representing a group of the largest Central Asian nations, the Shanghai Cooperation Organization (SCO) was originally formed to maintain regional security and political stability. However, its role has been extended in recent years to encompass economic benefits for member countries. Meanwhile, many western observers have also attributed the formation of SCO to counterbalance the impact of NATO and the United States in the region.