Summary of Glencore's production results for the fourth quarter and full year 2017.
(Own-sourced output volume, year-on-year % change) Copper Q4: 363,200 tonnes, 0% 2017: 1,309,700 tonnes, -8% Zinc Q4: 262,800 tonnes, -14% 2017: 1,090,200 tonnes, 0% Lead...