At the 2014 meeting of apec economic leaders in Beijing, leaders from 21 apec economies made the following declaration on the apec cooperation network on green supply chain (gscnet) : ''we genuinely value the apec high-level roundtable on green development and its declaration and agree to establish the apec cooperation network on green supply chain. endorse the establishment of the first pilot center of the apec cooperation network on green supply chain in tianjin