Apr 25, 2016 10 countries that export the most gold in the world. 11 Biggest Gold Mining Companies in the World biggest exporters of gold gold as a currency gold exports in Australia. gold exports in Canada.PJSC Polyus is the largest gold producer in Russia. PJSC Polyus is gold mining company with headquarters in Moscow, Russia. The Company also holds the world’s second largest gold reserves with 68 million ounces of proven and probable gold reserves underpinning its strong growth profile.