Peruvian Operations Coricancha, Contonga, Pucarrajo

OVERVIEWCONTONGA The Contonga mine is an underground multimetallic mine with more than 100 years of operating history. The mine which is located approximately 470 kilometers from Lima, Peru, has the authorisation to process 1,200 tonnes of ore daily and is continuing with mineral exploration programs that which will ensure the future of the operation.

CORICANCHA The Coricancha mine is an underground multi-metallic mine with more than 60 years of operating history. The mine’s poly-metallic processing plant utilizes the BIOX® bio-leaching process to recover refractory gold in an environmentally sound manner. Coricancha mine is located approximately 90 kilometers east of Lima, Peru in close proximity to a number of other signifi cant mining operations and exploration properties. The Coricancha mine was acquired by Nyrstar in October 2009 and has been on care and maintenance since August 2013. In May 2015, Nyrstar entered into a two year option agreement for the sale of the Coricancha mine to Great Panther Silver Limited

PUCARRAJO The Pucarrajo mine is an underground multimetallic mine which had been in operation for more than 30 years, and was operating at approximately 1,000 tonnes per day before it was placed on care and maintenance in 2008 due to weak metal prices. The Pucarrajo mine remains on care and maintenance.

2016

Fast Facts

Coricancha Mine Type— underground multi-metal mine

Products— gold/silver dore, lead concentrate, zinc concentrate, copper concentrate

Status of operations— in care and maintenance

Contonga Mine Type— underground zinc-lead-copper-silver mine

Products— zinc concentrate, lead

concentrate, copper concentrate Production 2015— 12,000 tonnes of zinc in concentrate— 900 tonnes of lead in concentrate— 3,700 tonnes of copper in concentrate— 481,000 troy ounces of silver in concentrate

Pucarrajo Mine Type— underground zinc-lead-silver mine

Products— zinc concentrate, lead concentrate

PRODUCTION PROCESS AT CORICANCHA

Drill & Blast

Crushing Circuit

Heavy Media

SeparatorLead

FlotationBall Mill

Zinc Flotation

Gold Flotation

BIOX® Bio-Leaching

Crushed Rock Aggregate

Lead/Silver Concentrate

Zinc Concentrate

Gold/Silver Dore

Tailings Filter Press

Haulage

MIL

LP

RO

DU

CT

SM

INE

Drill & Blast

SecondaryCrushing

Rod/BallMill

Thickener/FilterFlotation Tailings

Zinc/Lead/Copper

Concentrate

PrimaryCrushing

MIL

LP

RO

DU

CT

SM

INE

PRODUCTION PROCESS AT CONTONGA, PUCARRAJO

Status of operations— in care and maintenance

Nyrstar Peruvian Operations are part of Nyrstar, a global multi-metals business, with a market leading position in zinc and lead, and growing positions in other base and precious metals, which are essential resources that are fuelling the rapid urbanisation and industrialisation of our changing world. Nyrstar has mining, smelting, and other operations located in Europe, the Americas and Australia and employs approximately 5,000 people. Nyrstar is incorporated in Belgium and has its corporate office in Switzerland. Nyrstar is listed on Euronext Brussels under the symbol NYR.

Nyrstar is committed to providing a safe environment for our employees, minimising our smelters’ and mines’ impact on the environment and contributing to the communities in which we operate.

nyrstar.com © Nyrstar - Feb 2016

Peru, and the world of Nyrstar

THE WORLD OF NYRSTARContonga, Coricancha and Puccarajo Mines joined Nyrstar in 2009 and 2010. Contonga is a polymetallic mine with signifi cant reserves of zinc, lead, copper and silver. It is located in the district of San Marcos, in Ancash region, 470 km from Lima, the capital city of Peru. Contonga Mine was acquired by Nyrstar in July 2010, when it was part of Minera Huallanca S.A., and in 2015 increased its production capacity of 990 tonnes per day to 1,200 tonnes per day. This capacity is currently maintained.

Coricancha is a polymetallic mine with over 60 years history and located in the district of San Mateo, in the Lima region. It has reserves of gold, silver, copper, zinc and lead, and it uses a conventional mining method in its operation. The Coricancha mine was acquired by Nyrstar in October 2009 and has been on care and maintenance since August 2013. In May 2015, Nyrstar entered into a two year option agreement for the sale of the Coricancha mine to Great Panther Silver Limited

Pucarrajo is a mine with reserves of zinc, lead and silver located in the province of Bolognesi, Ancash region. It was acquired along with Contonga by Nyrstar and it is also currently on care and maintenance. All three of these mines have been in operations for decades and have rich histories of operations and community engagement activities.

HISTORY

Contonga, Coricancha & Pucarrajo, Peru

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38

LIMA

Coricancha

Pucarrajo

Contonga

SOUTH PACIFICOCEAN