The top 10 global producers of refined tin showed a 2.4% reduction in aggregate production in 2016 to 218,165t according to the International Tin Research Institute (ITRI). Their share of the global market also declined marginally from 67% in 2015 to 65% in 2016. The top 4 Chinese producers account for just over 50% of top 10 production and managed a 1% increase in 2016 with the help of imports from Myanmar covering a decline in domestic raw material supply.