IndicatorUnitApril. 2019Jan.-Apr. 2019Change2018-2019 Ore Grade Copper%0.710.720.73 Lead%2.652.662.78 Zinc%5.295.235.35 Nickel%1.121.131.19 Tin%0.620.670.59 Antimony%2.432.332.15 Tungsten%0.270.270.28 Molybdenum%0.100.100.11 Concentrate Grade Copper%22.0722.1321.60 Lead%60.8660.4061.24 Zinc%50.2150.0750.07 Nickel%6.906.916.92 Tin%43.0843.0043.64 Antimony%28.9628.6928.10 Tungsten%52.8851.3452.29 Molybdenum%52.2852.5252.72 Recovery Rate of Mineral Processing Copper%86.2586.2086.00 Lead%86.8485.87 Zinc%91.5691.5090.74 Nickel%84.3084.2384.70 Tin%69.3571.8368.76 Antimony%90.3583.1885.11 Tungsten%79.4778.1177.92 Molybdenum%85.7785.3285.08 Copper Total Recovery Rate of Copper Smelting%98.5898.5498.29 Recovery Rate of Refined Copper%99.6199.6199.64 Recovery Rate of Blister%98.8398.9898.84 Direct Current Consumption of Refined CopperkWh/ton334.46326.39322.66 Current Consumption of BlisterkWh/ton742.23717.50764.80 Coal Consumption of Blisterkg/ton171.30180.80209.84 Aluminum Comprehensive AC Power Consumption of AluminumkWh/ton13526.7313530.4513556.98 Direct Current Consumption of AluminumkWh/ton12886.3012885.3412906.44

IndicatorUnitApril. 2019Jan.-Apr. 2019Change2018-2019 Alumina Consumption of Aluminumkg/ton1913.761912.831912.79 Total Recovery Rate of Aluminakg/ton78.4178.3978.97 Soda consumption of Aluminakg/ton147.19155.06172.93 Lead Total Recovery Rate of Lead Smelting%96.9397.0597.15 Recovery Rate of Lead Bullion%97.7797.9297.98 Coal Consumption of Lead Bullionkg/ton351.96319.57258.80 Direct Current Consumption of Refined LeadkWh/ton119.88119.66117.47 Zinc Total Recovery Rate of Refined Zinc%96.2696.5996.36 Direct Current Consumption of Refined ZinckWh/ton3095.303080.563079.82 Tin Total Recovery Rate of Tin Smelting%98.0598.1797.80 Direct Current Consumption of Tin SmeltingkWh/ton1930.432019.191947.94 Coal Consumption of Tin Smeltingkg/ton1568.571505.481588.75 Nickel Total Recovery Rate of Nickel Smelting%94.0194.0393.77 Antimony Total Recovery Rate of Antimony Smelting%95.9796.0296.78 Direct Current Consumption of Antimony SmeltingkWh/ton1024.191043.021026.83 Yield of Processed Material Rate of Total Copper Products%77.7477.6478.99 Copper Melting %95.2195.1795.66 Copper Processing Products%81.1281.0582.32 Rate of Total Aluminum Products%69.8770.6371.24 Aluminum Melting%91.5391.7591.76 Aluminum Processing Products%75.9076.6077.30