Sierra Metals Inc


The runner-up photo in PwC’s Art of Mining competition showing modernization at Gran Colombia Gold’s Segovia gold mine in Antioquia, Colombia. Credit: Gran Colombia Gold.

Snapshot: Juniors in Colombia, Ecuador and Peru

For mineral explorers and developers, the northern Andean countries of Colombia, Ecuador and Peru are a potent combination of richly endowed metal mineralization and under-explored terrain, all hosted in relatively…


Alamos Gold's Mulatos gold mine in Mexico's Sonora state in 2014. Credit: Alamos Gold.

Mexico Snapshot: Six active juniors

Mexico is a home away from home for Canadian mineral explorers and junior mine developers, with its highly prospective geology, low operating costs and pro-mining culture. Here are six Canadian…


Atico Mining's El Roble copper-gold-silver mine southwest of Medellin, Colombia. Credit: Atico Mining.

Northern Andes Snapshot: Eight active juniors

The northern Andean countries of Colombia, Ecuador and Peru are fertile ground for mineral explorers and mine developers, with their rich mineral bounty, underexplored terrain and pro-mining cultures. What follows…



TSX climbs, May 16–20

Canada’s benchmark index advanced ahead of the Victoria Day holiday weekend, rising 171 points, or 1.2%, to 13,919.58, as investors took in higher oil prices and the possibility that the…


Mining engineers lead an underground  tour through Sierra Metals' 82%-owned Yauricocha mine in Peru. Source:  Sierra Metals

Sierra Metals turns up the heat in Mexico

In July, Sierra Metals (TSX: SMT) appointed as its vice-president of exploration Matthew Wunder — a geologist who during  his career was part of a group at Rubicon Minerals (TSX: RMX; NYSE-MKT: RBY) that discovered and developed the…


The crushing facility at Sierra Metals' Yauricocha mine in Peru.

Sierra Metals unleashes Yauricocha’s full potential

LIMA, PERU — Sierra Metals (TSX: SMT; BVL: SMT) is proving up the underground potential of its Yauricocha silver–lead–copper–zinc–gold mine in west-central Peru. The low-cost underground mine is the company’s…


Facilities at Excellon Resources' La Platosa silver mine in Mexico. Credit: Excellon Resources

Excellon CEO on Mexico, taxes and trust

Excellon Resources’ (TSX: EXN; US-OTC: EXLLF) La Platosa Mine in Durango is one of the world’s highest-grade silver mines. The mine also boasts lead and zinc by-products that make it one of the lowest cash-cost silver mines in…


Thomas Robyn, Sierra Metals' vice-president of exploration, at the Cusi silver-gold project in Mexico.  Photo by Anthony Vaccaro.

Sierra Metals goes old school at Cusi

CHIHUAHUA STATE, MEXICO — The green foothills an hour west of the city of Chihuahua are peaceful now. There is nothing in the gaze of a lingering llama that would tip a visitor off to the blood spilled here roughly a hundred years ago.


Exploration drilling from the surface at Sierra Metals' underground Yauricocha polymetallic mine in Peru. Source: Sierra Metals

Sierra Metals goes deeper at Yauricocha

Sierra Metals’ (TSX: SMT; TSXV: SMT; US-OTC: DBEXF) claim that its underground Yauricocha silver-copper-lead-zinc-gold mine in Peru has plenty more to give at deeper depths is proving correct.


Sierra Metals is doubling the mill capacity at its Bolivar copper-zinc-silver mine in Mexico to 2000 tonnes per day. Source: Sierra Metals

Sierra Metals keeps faith in exploration

There are two ways to look at the current rough conditions in the mining equity markets: investors can believe in the “sky is falling” scenario and stay clear for an indeterminate period of time, or they can see present conditions…


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