Name: Langlois mine.

Location: The Langlois mine is located in Bay James Territories, in north-west Quebec, about 50 km north-east of the town of Lebel-Sur-Quévillon, Canada.

Controlling Company: Nyrstar.

Brief History: The Langlois mine dates back to 1994, when Cambior was the owner. Nyrstar acquired the mine in August 2011 and completed the ramp-up of the mine, which reached commercial production in the first half of 2012.

Brief Description: Langlois is a multimetal mine, which produced 39 000 t of zinc in concentrate, 2 000 t of copper in concentrate, 2 000 oz of gold in concentrate and 528 000 oz of silver in con- centrate in 2012.

Mining Method: Underground. The orebody was originally mined using long hole stopping, which is still used today. Two new methods, – Alimak and cut-and-fill, were introduced in late 2012 to improve the mine’s overall performance.

Products: Zinc and copper concentrate, with silver as a by-product.

Major Infrastructure and Equipment: The Langlois mine facilities include a headframe, a hoisting plant, a paste backfill plant, mechanical and electrical shops, a service building, a 2 500 t/d zinc/copper concentrator and a tailings pond.

Geology/Mineralisation: The Langlois deposit contains mainly zinc, along with lesser values of copper, silver and gold, from narrow, tabular volcanogenic massive sulphide (VMS) bodies with near vertical dips. These VMS bodies, referred to as zones, are relatively thin – 1 m to 8 m – but exhibit considerable vertical and lateral extension.

Reserves: Total proven and probable reserves, according to a report published on February 7, were 4.51-million tonnes, with a grading of 8.72% zinc, 0.59% copper, 41.66 g/t silver and 0.06 g/t gold.

Resources: Total measured and indicated resources, according to a report published on February 7, were 5.37-million tonnes, with a grading of 9.92% zinc, 0.70% copper, 49.41 g/t silver and 0.07 g/t gold. Inferred resources were 1.28-million tonnes, with a grading of 8.36% zinc, 0.57% copper, 47.57 g/t silver and 0.10 g/t gold.

Prospects: Langlois currently has a mine life of about ten years, with promising exploration opportunities that could extend this by a further five years.

Contact Person: Manager corporate communications, Geert Lambrechts.

Contact Details:
Nyrstar, tel: + 32 14 449 646, fax: + 32 14 810 531, email: geert.lambrechts@nyrstar.com, and website: http://www.nyrstar.com

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