The brilliant performance comes from the rapid rise in product prices. The annual report shows that the average price of copper rose by 31% year-on-year in 2017; the annual average price of sulfuric acid rose by 76% year-on-year; copper concentrate processing fees and lithium foil processing fees continued to remain stable. During the period, Tongling seized favorable conditions to produce 1.2887 million tons of copper cathode, 46.7 million tons of copper in copper concentrates, 9605 kg of gold, 385.9 tons of silver, and 3.7834 million tons of sulfuric acid. The output of main products remained stable.