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CONSTRUCTION SERVICES FOR MINING

WWW.STRACONGYM.COM

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Shahuindo Project (Peru)

WE FORM PART OF THE GRAÑA Y MONTERO GROUPWWW.GRUPOGRANAYMONTERO.COM

We ensure the success of our clients through sustainable mining operations.

SUSTAINABLE RELATIONSand support to local communities

OPERATIONAL LEADERSHIPand efficient execution of the projects

"ALL OUR EMPLOYEES returning home safely, everyday"

WHAT MAKES US DIFFERENT?

LEADING WORLD CLASS MINING CONTRACTOR

SAFETY COMPLIANCEQUALITYINTEGRITY EFFICIENCY

OUR VALUES ARE THE INPUT FOR OUR ETHICS CHARTER, POLICIES, PROCESSES, LEADERSHIP STYLE, AND DECISION MAKING. OUR VALUES ARE:

IN LATIN AMERICA

EXPERIENCEPeru - Chile - Panama -

Colombia - Mexico

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A successful organisation has

a clear purpose, is community-oriented

and inspires its personnel to live its

values, fostering a culture of trust.

OUR PEOPLE

We add value through our people, who understand the needs of our clients and provide customized solutions.

STEVE DIXONCHIEF EXECUTIVE OFFICER

n EXPERIENCED MANAGEMENT TEAM focused on operational leadership n PERSONNEL SPECIALIZED in safety, planning, execution and control of projects

n ONGOING DEVELOPMENT of operators and community members

n STATE-OF-THE-ART-SIMULATORS for training

La Arena Project (Peru)

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OUR CONSTRUCTION SERVICES FOR MININGWe have participated in the successful construction and expansion of several greenfield and brownfield operations throughout Latin america.

La Arena Project (Peru)

Construction of mine infrastructure (tailing dams, leach pads, reservoirs, etc.).

Site preparation and clearing

Construction of access and haul roads.

Construction of workshops, camps, fuel stations and magazines.

Engineering development and project management.

Earthworks servicesThis service is provided from the first stage of the project, through the clearing, the construction of access and haul roads, the construction of workshops and camps, the excavation and mass filling of civil structures.

Man-hours worked per year

~20 million (2015)

Engineering and construction

Efficient equipment fleet management

+100 km of access and haul roads built

90% equipment availability

LTIFR: 0.31* *Loss Time Injury Frequency Rate per 200,000 man-hours worked

High safety standards

STRACON GyM offers integrated solutions to these requirements, including:

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Construction of Tailing dams

International experience

45 million m³ of mass excavation works

+2 million m² of geotextile membrane installed

40 million m³ of mass fill and structural fill

Engineering and construction

7 million man-hours worked (2015)

Construction of Leach Pads

8 million man-hours worked (2015)

Engineering and construction

We operate ancillary equipment valued

at more than +$38 million

3 million m³ of structural fill and low-permeability soil

6 million m³ of mass excavation works

Leach pads built

+150 hectares

7 pads

La Arena Project (Peru)

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OUR EXPERIENCE

Earthworks services

La ZanjaBVN & Newmont Cajamarca - Peru Cmdty: gold – 16 MTPY(2010 – to date)

La ArenaTahoe ResourcesLa Libertad - PeruCmdty: gold - 38 MTPY (2010 - to date)

Cobre PanamaFirst Quantum Minerals Colon - PanamaCmdty: copper - 36M de m³(2013 - to date)

MarconaShougang Hierro Perú S.A.A.Ica - PeruCmdty: iron - 32 MTPY(2008 - 2012)

ConstanciaHudbay MineralsCusco - PeruCmdty: copper - 80 MTPY (2012 - 2016)

ShahuindoTahoe ResourcesCajamarca - PeruCmdty: gold – 25 MTPY(2015 - to date)

El BrocalSoc. Minera El Brocal S.A.A.Cerro de Pasco - PeruCmdty: poly-metallic - 20 MTPY(1998 - 2015)

La Zanja Project (Peru)

Ana PaulaAlio GoldCerro Negro, MéxicoCmdty: oro, plata(2017 - 2018)Development of the 1,200m underground ramp, and associated works.*

San Francisco Alio GoldSonora, MéxicoCmdty: oro (2017 - 2019)Pre-stripping works of Stage 2 of La Chicharra open pit.*

*Work is carried out through STRACON GyM’s mexican subsidiary, GDI STRACON GyM S.A. de CV.

** Imagen de Alio Gold Inc.

** Imagen de Alio Gold Inc.

Punta de LobosSoc. Minera Punta de Lobos Iquique - ChileCmdty: salt - 10.5 MTPY(2011 - 2012)

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OUR EXPERIENCE

Construction of Tailing dams

Construction of Leach Pads

ToromochoMinera Chinalco Perucmmty: cooper950 MT of tailings (2011 - 2013)

Cobre PanamaFirst Quantum Mineralscmmty: cooper 950 MT of tailings. (2013 - 2016)

ConstanciaHubday Mineralscmmty: cooper 277M-dry tons (Commenced: 2012)

Cerro CoronaGold fieldscmmty: cooper / gold158 MT of tailings (2006 - 2008)

La ZanjaBVN & Newmont Cajamarca - Peru 14Ha - 1 leach pad built(2010 - to date)

La ArenaTahoe ResourcesLa Libertad - Peru78Ha - 4 leach pads built(2010 - to date)

ShahuindoTahoe ResourcesCajamarca - Peru26Ha - 2 leach pads built(2015 - to date)

Constancia Project (Peru)

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With Hudbay venturing into new territory, open pit mining at altitude, new country, new language, no employee base, etc. STRACON GyM had the communication and transparency that provided us with the confidence that they would be good partners to manage the risks associated with the mining and the civil earthworks. That left us to concentrate on plant construction, permitting, social engagement and government relations.

The venture was successful and the cooperation at all levels was consistent. STRACON GyM proved flexible in their contract style and conflict resolution. They have also facilitated a seamless transition to owner mining. They were and are a key and integral part of the Constancia success.

OUR REPUTATION

ALEX BLACKEX-CHIEF EXECUTIVE OFFICER AND PRESIDENT OF RIO ALTO MINING LIMITED

Our success is demonstrated by the success of our clients operations.

Rio Alto is a Peruvian success story that owes a lot of its formative achievements to its Mining Alliance with STRACON GyM.The Mining Alliance at the La Arena Gold Mine was the first of its kind in Peru, based on a cooperative and collaborative relationship between Rio Alto management and the management of STRACON GyM. A ‘best for project” principal was implemented from the outset with a united approach to getting La Arena started and run on the most optimal basis to the benefit of both Alliance Partners without conflict or adversity.

The flexibility and willingness of the STRACON GyM team to work with Rio Alto management to get the job done at La Arena was a key component to the project’s success.

CASHEL MEAGHERCHIEF OPERATING OFFICER AT HUDBAY MINERALS

STRACON GyM has built its reputation as a leading mining contractor in the region by upholding its values. We strive to become strategic partners of our clients, providing them with efficient solutions, adding value to their operations.

Here are some of our working partners:

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Shahuindo Project (Peru)

STRACON GyM S.A.Graña y Montero Group

Lima, PeruAv. República de Panamá #4675Surquillo, Lima 34, PeruTel. (511) 208-0230Fax (511) 421-6045

Cocle, Panama Harinos Mall, Piso 2, Oficina 12 Penonome.Cocle, Panama

MexicoDesierto de los Leones #24 Int.401 Col. San Ángel, Del Álvaro Obregón, C.P. 01000, Mexico DF

ColombiaCalle 7 Sur N° 42-70 Oficina 709 Medellin, Antioquia.

E-mail info@stracongym.comwww.stracongym.com

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