How New Century has delivered economic mine site rehabilitation to the Century deposit and maintained the social license to operate while building for future growth
The first mining lease in the region of Australia’s North West Queensland was issued way back in 1890. However, it was not until 100 years later when Rio Tinto’s exploration arm completed the discovery of “big zinc” that large scale mining become possible, hence they named it the Century deposit. This was sold on to Pasminco, which took the open cut zinc, lead and silver mine into production in 1997.
While the pipeline and Port facility could handle a million tonnes per annum of concentrates, a slow floating ore body meant that Pasminco was faced with metallurgical challenges to optimise production and maximise returns from the operation. The choices available were to increase available residence time through building additional floatation capacity or increase throughput at the sacrifice of recoveries. The latter was chosen due to the lower capital requirements and the large resource available. This ultimately led to the substantial mineral resource in the tailings dam, and the opportunity for New Century.
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