UPDATE 1-Lower copper prices to hit Zambia revenue receipts -official
September 09, 2015 at 12:26 PM EDT
JOHANNESBURG, Sept 9 (Reuters) - Zambia's revenue collection in 2015 could be even lower than the 2 billion kwacha ($3.6 million) downward adjustment the finance minister made earlier this year, as weaker copper prices take their toll, the revenue head said on Wednesday.