Straits Asia: Upgrade to coal reserves and resources at Jembayan mine
Thursday, August 19 2010 - 04:27 PM WIB
The upgrade is the result of the latest information generated from the continuing exploration programme at Jembayan mine.
So far the various stages of the programme have covered approximately 75% of the property.
The latest drilling campaign is part of a planned programme of ongoing development drilling designed to maintain a detailed inventory of sufficient Reserves to support both short term and long term mine planning and product quality control. The appropriate level of inventory will be reviewed annually in accordance with the planned production profile for the mine, marketing requirements, topographic constraints and geological complexity.
In H1 2010 Jembayan mine produced 4.6Mt of coal, with the mine?s target being to progress towards a medium term objective of 12Mtpa. The additional information from the exploration programme underscores the mine?s ability to achieve this target and continue operations at this level for a considerable period of time.
RESERVES SUMMARY
? Coal Reserves: 127Mt (21% increase from 105Mt at 31 December 2009). All the Reserves are in the ?Marketable? category.
COAL RESERVES (Mt) as at 30 June 2010 |
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| Proven | Probable | Sub-Total | Marketable |
| 21 | 106 | 127 | 127 |
RESOURCES SUMMARY
? Coal Resource: 610Mt (21% increase from 504Mt at 31 December 2009). Measured and Indicated Resources increased by 50% and now represent 84% (previously 67%) of the total Resource.
COAL RESOURCE (Mt) as at 30 June 2010 |
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| Measured | Indicated | Sub-Total | Inferred | TOTAL |
| 60 | 450 | 510 | 100 | 610 |
As well as the addition of over 100Mt to the Resources base of December 2009, the JORC classification has been upgraded, signifying a greater confidence in the tonnages. Of these, 60Mt are in the Measured category (previously 16Mt) and 450Mt in the Indicated category (previously 323Mt), which in total increases the Measured and Indicated category by 33%. (end of release)