Glencore fourth-quarter down in most metals but 2020 targets unchanged

LONDON (Reuters) - Glencore posted a 6% fall in fourth-quarter copper production and a 13% decline in cobalt as the miner and trader shut its Mutanda mine ahead of schedule.Glencore, which in December forecast a modest decline in copper output over the next three years, shut its Mutanda mine in the Democratic Republic of Congo in November due to falling cobalt prices and rising costs and taxes.In 2019, copper output fell 6% to 1.37 million tonnes while cobalt climbed 10% to 42,200 tonnes as..