Dec 5 (Reuters) - Sumatra Copper & Gold Plc SUM.AX :
* Asx alert-damage to underground drill rig-sum.ax
* Advises that damage was sustained to one of underground
jumbo drill rigs at its tembang gold-silver operation
* There will be short term impact on production from interim
bcf ore drives
* A large quantity of perched water was encountered
following blasting of level6 east ore drive on Dec 2
* Expected that there should not be any effect on 2017
production guidance due to damage
* Currently estimated that single boom jumbo will be out of
service for up to six weeks
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