The Rotowaro coalfield and opencast mine is the second largest opencast coal mine in New Zealand.
The mine is located in the Rotowaro coal field, an area that has had a long history of both open cast and underground mining. It was first mined in 1915 after a branch railway and a bridge were established over the Waikato River. The current opencast mine opened in 1958.
The coal is low ash, low sulphur thermal coal. Both the lower seam and upper seam of the moderately complex Waikato coal measures are present.
The high-quality sub-bituminous coal is sought after in the following industries:
- lime manufacturing
- meat works
- timber processing plants
- light industrial plants, and
The mine has opportunities for extension. Detailed planning is well advanced to commence operations on the Waipuna West extension, which will see a three-year extension (based on current production/sales volumes) to mining operations. The coal is destined for the same customer base as existing Rotowaro sales.
The Rotowaro North project is located 4 kilometres north-west of the current mine site, and is in the conceptual phase where we have confirmed its resource tonnes.
- 65% BRL 35% Talleys Energy
- 10 km west of Huntly
- CML 37155, ACML 37155-01, EP 56220, EP 60146
- Coal types
- Sub-bituminous, domestic thermal coal
- Life of mine
- 3+ years
- Coal Reserves
- 1.7 Mt
- Coal Resources
- 6.1 Mt
- Last FY production
- 490 Kt