UPDATE 2-Glencore posts solid growth in copper; nickel, zinc output dip
* Zinc output falls 11 pct, nickel down 8 pct
* Koniambo produced 4,100 tonnes in H1
* Revised target for Koniambo to be announced next week
* Coal prices still a drag on Glencore - analyst (Adds production data, comments, Koniambo details)
By Silvia Antonioli
LONDON, Aug 13 (Reuters) - Mining company Glencore posted a 13 percent increase in first-half copper output, in line with market forecasts and boosted by growth at its African and South American mines but its zinc and nickel production dipped.
The London-listed company, which is due to report half-year results next week, makes almost half of its profit from the red metal and said its total copper output using feed from its own sources rose to 741,000 tonnes in the first half of this year.
That compares with analysts' forecasts of 739,000-754,000 tonnes.
The increase in copper was mostly on the back of higher production at its Mutanda and Katanga mines in the Democratic Republic of Congo and at its Antapaccay mine in Peru. Operational improvements at Collahuasi in Chile, a joint venture with Anglo American, also helped. Continuación...