Kinshasa - Copper production in the Democratic Republic of Congo, Africa's leading producer of the metal, dropped in 2015 after five straight years of output rises because of falling global commodities prices, the Chamber of Mines said on Wednesday.
Copper output fell by 3.3 percent last year from 2014 to 995,805 tonnes.
Official gold production saw an increase of 30.4 percent to 25.5 tonnes, the Chamber said in a report.
"The year 2015 was marked by a fall in prices for metals and commodities, the worst since the global economic crisis of 2008/2009," it said.
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"Although the DRC has adjusted rather well to this new scenario - gold production was up 30 percent and copper showed only a 3 percent decrease -- the economic activity of the country will nevertheless be impacted significantly in 2016," it warned.
RD Congo has one of the world's least developed economies, but gross domestic product (GDP) growth has been constant over recent years, pulled by the country's mining sector.
GDP is estimated to have risen by 7.7 percent last year from 2014, and projected to increase by another 9.9 percent this year according to the government, but the International Monetary Fund has a more modest 7.3 percent estimate.