JOHANNESBURG, Feb 5 (Reuters) - DRDGOLD Ltd
* Says 4 pct rise in gold production, 17 pct increase in operating profit
* Says drop in all-in sustaining costs of 14 pct
* For the half-year ended 31 December 2013 gold production was down 8 pct compared with the first six months of FY 2013
* Says cash operating profit was down 62 pct on the back of the drop in production in half year ended December 31
(Johannesburg Newsroom; +27 11 775 3155))
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