Canadian Mining Journal


TUNGSTEN: Northcliff updates ongoing work at Sisson JV

Proposed layout for the Sisson open pit and plant near Fredericton, N.B. (Image: Northcliff Resources)

NEW BRUNSWICK – On behalf of Sisson Mines, a joint venture of Northcliff Resources (88.5%) and Todd Minerals (11.5%), Northcliff has provided an update of activities at the Sisson tungsten-molybdenum project 60 km northwest of Fredericton.

Since the positive federal environmental assessment was made in June 2017, the project has been subject to public consultations. At the same time, Northcliff is focusing on advancing key permits, specifically those that will be granted by the province for the construction and operation of an open pit and mill.

The Sisson feasibility study was completed in 2013, but engineering studies are underway to further optimize the project, meaning reducing capital and operating costs. Metallurgical tests are ongoing in the search for methods to improve the grade of the tungsten concentrate without impairing the recovery rate.

The Sisson deposit has measured and indicated resources of 387 million tonnes grading 0.067% tungsten trioxide and 0.021% molybdenum, plus an inferred resource of 187 million tonnes grading 0. 050% tungsten trioxide and 0.020% molybdenum.

Northcliff is also in discussions with various parties regarding project finance and offtake agreements.

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