ISLAMABAD: Prime Minister Shehbaz Sharif said on Friday that cooperation in trade and economic spheres was a “win-win proposition” which offered “rich dividends” to all parties involved. He made the remarks while addressing the Regional Transport Ministers’ Conference in Islamabad. Transport ministers and senior officials from Türkiye, Sri Lanka, Iran, Maldives, Turkmenistan, Saudi Arabia, Belarus, Azerbaijan, Russia, and Kazakhstan are …