Name: Timmins West mine (TWM).

Location: Timmins West mine is located about 19 km west of Timmins, in Ontario, Canada.

Controlling Company: Pan American Silver and Tahoe Resources completed a transaction in February 2019 whereby Pan American acquired all of the issued and outstanding shares of Tahoe.

Brief Description: The TWM comprises the Timmins, Thunder Creek and 144 Gap deposits.

Timmins has a life-of-mine until 2024.

Brief History: Timmins West has been in operation since 2011.

Tahoe acquired TWM in April 2016 as part of its acquisition of Lake Shore Gold Corporation. In February 2019, Pan American Silver acquired all the issued and outstanding shares of Tahoe Resources.

Products: Gold.

Geology/Mineralisation: The TWM includes the Timmins, Thunder Creek and 144 Gap deposits, all of which occur along the 144 Trend, a broad and extensive structural corridor that extends to the south-west from the Timmins deposit area. This trend generally coincides with the north-east-trending contact zone between south-east-facing mafic metavolcanic rocks of the Tisdale Assemblage to the north-west- and dominantly south-easterly-facing metasedimentary rocks of the Porcupine Assemblage to the south-east. The contact dips steeply to the north-west, and is modified and locally deflected by folds and shear zones that are associated with gold mineralisation.

Gold mineralisation occurs in steep north-north-west-plunging zones, which occur within, or along favourable lithostructural settings in proximity to the 144 Trend and related structures. Mineralisation comprises multiple generations of quartz/carbonate/tourmaline ± albiet veins, associated pyrite alteration envelopes, and disseminated pyrite mineralisation. Textural evidence suggests that veining formed progressively through D3 and D4 deformation. All phases of gold-bearing veins cut and post-date the Alkalic Intrusive Complex and syenitic to monzonitic intrusions, although mineralisation is often spatially associated with ore preferentially developed within these intrusive suites.

Reserves: Total proven and probable reserves as at January 31, 2018, were estimated at 205.3-million tonnes grading 0.56 g/t gold.

Resources: Total measured and indicated resources as at January 31, 2018, were estimated at 7.14-million tonnes grading 3.9 g/t gold. Inferred mineral resources were estimated 1.1-million tonnes grading 3.8 g/t gold.

Mining Method: Underground longhole stoping.

Major Infrastructure and Equipment: TWM comprises a production shaft; main shaft stations, ore and waste rockbreakers and bins, as well as a loading pocket; ventilation raises to surface and internal ventilation raises underground; the main ramp from surface; an internal ramp system to access existing sublevels; mine dewatering facilities; electrical distribution and communications; compressed air and service water distribution; maintenance facilities; access to Thunder Creek at 275L and 730L, and 144 Gap at 775L and 835L.

All ore mined is processed at Pan American’s Bell Creek mill – a conventional gold processing plant using cyanidation with gravity and carbon-in-pulp delivery.

Prospects: Pan American Silver acquisition of Tahoe will result in a more diversified company with a strong portfolio of cash-generating assets and superior growth opportunities.
 

Contact: VP, investor relations and corporate communications Siren Fisekci.

Contact Details:
Pan American Silver
Tel +1 604 684 1175
Fax +1 604 684 0147
Email info@panamericansilver.com
Website https://www.panamericansilver.com