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United States of America

Heap Leach Stacking
Overland Conveyors, Mobile Stacking Conveyors
Freeport-McMoRan
2013-14
Safford
Copper

Design, supply and erection of modifications to existing overland conveyor with a fixed tripper station, new 60"x1,200' long overland conveyor and new modular MCC, and reinstallation of salvaged 60"x6,700' long overland conveyor and mobile tripper.

Crushing - Process Plant
In-Plant Conveyors
Freeport-McMoRan
2012-14
Morenci Metcalf
Copper / Molybdenum

Design and supply of all mechanical, structural and instrumentation for 15 belt conveyors and modifications to three existing belt conveyors. Project includes approximately 6,000 tons of steel.

Heap Leach Stacking
Overland Conveyors, Mobile Stacking Conveyors
Freeport-McMoRan
2011-12
Safford
Copper

Design, supply and erection of new 60"x7,400' long regenerative overland conveyor with mobile tripper, and 72"x1,700' long extension to existing agglomeration transfer conveyor.

Crushing - Process Plant
Crushing Equipment
Mercator Minerals
2007-08
Mineral Park
Copper / Molybdenum

Design and supply of 3,500 tph primary jaw crushing plant, discharge conveyor, stockpile feed conveyor, two SAG mill feed conveyors and four 60" reclaim belt feeders.  Scope included all mechanical, structural, electrical, instrumentation, controls and dust control systems; and design of all concrete foundations.

Heap Leach Stacking
Mobile Stacking Conveyors
Freeport-McMoRan
2007, '10, '12-'13, '14
Morenci Heap Leach
Copper

Design, supply and construction of five 72"x250' and three 54"x250' Super Portable™ conveyors for the Stargo leaching site over a series of projects. Design and supply of five additional 72"x250' Super Portable conveyors for the Southwest Pad.

Crushing - Process Plant
In-Plant Conveyors
BHP Billiton
2006-07
Pinto Valley
Copper

Design and supply of copper concentrate stockpile conveyor and filter press belt feeder.

Crushing - Process Plant
In-Plant Conveyors
Black Hills Generation
2006-07
Wygen
Coal

Design, supply and erection of six new 30" conveyors for a coal fired power plant expansion project.

Crushing - Process Plant
In-Plant Conveyors
Eagle Rock Aggregates
2005-07
Port of Richmond, CA
Aggregate

As the General Contractor, TNT designed, supplied and erected an aggregate offloading, storage, reclaim and truck loadout facility, including a 650 ft long A-frame storage building, and all mechanical, structural, electrical and controls. The terminal can receive product at 5,000 tons per hour, and the terminal's enclosed building stores approximately 70,000 tons of material.

Heap Leach Stacking
Overland Conveyors, Mobile Stacking Conveyors
Freeport-McMoRan
2005-07
Safford
Copper

Design, supply and erection of world's largest mobile heap leach stacking system (7,200 tph), comprising a 7400' long regenerative overland conveyor, ten 72"x250' Super Portable conveyors, Horizontal Feed Conveyor, 300' long Horizontal Conveyor and 220' long Radial Stacker. Surpassed as the world's largest in 2010 by TNT's system at El Abra.

Crushing - Process Plant
In-Plant Conveyors
Coeur Alaska
2005-06
Kensington
Gold

Design and supply of five belt conveyors, two belt feeders, primary crushing plant, secondary crushing plant, 1,300 ton fine ore bin, including all structural steel, mechanical equipment (except crushers and screen), electrical and instrumentation, and dust control system.

Heap Leach Stacking
Mobile Stacking Conveyors
Constellation Copper
2005
Lisbon Valley
Copper

Design and supply of 36" heap leach stacking system (1100 tph).

Crushing - Process Plant
In-Plant Conveyors
Newmont
2004-05
Phoenix
Gold

Design and supply of seven belt conveyors, SAG/ball mill ball handling system, and 300 tonnes of chute work and other fabricated plate work.

Crushing - Process Plant
In-Plant Conveyors
Canyon Resources
1997-98
CR Briggs
Gold / Silver

Provision of a variety of services at this gold-silver heap leach project, including working with the mine's operators on a 650 tph crusher improvement program that included engineering modifications, operational controls and training, and maintenance program improvements.  This program led to the mining of a record 3.4M tons of ore in 1998, a 19% improvement over 1997, and increases in gold and silver production of 20% and 15%, respectively.

Heap Leach Stacking
Mobile Stacking Conveyors
POV
1997
Florida Canyon
Gold / Silver

Design, procurement, fabrication and assembly services for a 120'/140' radial stacker and 140' horizontal bridge conveyor and associated electrical systems, for use at a 40,000 tpd gold-silver heap leach operation

Mexico

Heap Leach Stacking
Overland Conveyors
Pan American Silver
2013
Dolores
Silver / Gold

Upgrades to the stacking system supplied by TNT in 2007 to support new leach pad operations, including a new power distribution system, overland conveyor modifications, and a comprehensive stacking plan study for current and future operations.

Heap Leach Stacking
Mobile Stacking Conveyors
Frontera Copper
2010
Cobre del Mayo
Copper

Design and supply of 5 additional 36"x115' Portable conveyors (1,100 t/h) to augment the TNT-supplied heap leach stacking system purchased from a closed mine.

Crushing - Process Plant, Heap Leach Stacking
Overland Conveyors, Mobile Stacking Conveyors, In-Plant Conveyors, Crushing Equipment
Minefinders
2006-07
Dolores
Silver / Gold

Design, supply and erection of 36" heap leach stacking system (1,053 mtph), and inplant crushing and conveying system, including primary, secondary, and tertiary crushing/screening, stockpile, reclaim, dust control, lime system and overland conveyors.

Crushing - Process Plant, Heap Leach Stacking
Overland Conveyors, Mobile Stacking Conveyors, In-Plant Conveyors
Gammon Lake Resources
2005-06
Ocampo
Gold

Design and supply of 36" heap leach stacking system (800 tph), overland conveyors, and coarse ore stockpile stacking and reclaim conveyors.

Heap Leach Stacking
Mobile Stacking Conveyors
Corner Bay Silver
2002
Alamo Dorado
Silver / Gold

Detailed feasibility study of developing a 13,000 tpd silver-gold heap leach property, including crushing and stacking facilities.

Heap Leach Stacking
Mobile Stacking Conveyors
Grupo Mexico
1999-00
Cananea
Copper

Design, build and installation of the world's first mobile high-angle conveyor system, incorporating equipment from Continental Conveyor and Caterpillar, providing a second 2,500 tph, 30-m lift over the top of the first lift at the Quebalix I copper leach pad.

Heap Leach Stacking
Mobile Stacking Conveyors
Metallica Resources
1997
Cerro San Pedro
Gold

Assistance with the review and optimization of the feasibility study of the 1,200 tph crushers, overland conveyors and heap leach stacking system for a gold project.  Development of new layouts for the heap leach pads, cell and lift sequence studies, establishment of equipment requirements, and sizing of equipment and belts in the crushing and stacking areas.

Peru

Heap Leach Stacking
Overland Conveyors, Mobile Stacking Conveyors
Freeport-McMoRan
2008, 11-12
Cerro Verde
Copper

Continued support of stacking operations by designing and supplying a total of seven new 2,600 t/h, 42"x125' Portable conveyors, two new 42" overland conveyors (1,700 m and 550 m), and upgrades to all existing mobile conveyors.

Heap Leach Stacking
Mobile Stacking Conveyors
Phelps Dodge
2004-05
Cerro Verde
Copper

Design and supply of 54"x300' Horizontal Conveyor and 54"x220' Radial Stacker.

Crushing - Process Plant, Heap Leach Stacking
Mobile Stacking Conveyors, In-Plant Conveyors
BHP Billiton
2000-01
Tintaya
Copper

Design and supply of a stacking system for copper heap leach facilities, with rail-mounted tripper, 245' horizontal bridge conveyor and 140'/160' radial stacker, and of conveyors, belt feeder and related equipment at the crushing plant.

Heap Leach Stacking
Mobile Stacking Conveyors
Sociedad Minera Cerro Verde
1997-99
Cerro Verde
Copper

Provision of two portable conveyors for the initial expansion of the project, and subsequent supply of two additional conveyors (totaling 2,150 tph) for the next expansion phase, at this 105M lb/yr cathode copper production facility and heap leach stacking system with multiple lifts in a valley-fill configuration.

Chile

Heap Leach Stacking
Overland Conveyors, Mobile Stacking Conveyors
Xstrata
2011-12
Lomas Bayas
Copper

Design and supply of a 2,070' overland conveyor with mobile tripper, as well as three new mobile conveyors: 42"x100' Horizontal Feed Conveyor, 48"x140' Horizontal Conveyor and 42"x120/140' Radial Stacker.

Heap Leach Stacking
Mobile Stacking Conveyors
BHP Billiton
2011
Cerro Colorado
Copper

Continued support of stacking operations begun in 2004 by designing and supplying a tripper and Horizontal Conveyor, and a new Radial Stacker. 

Heap Leach Stacking
Overland Conveyors, Mobile Stacking Conveyors
Xstrata
2008-09
Lomas Bayas
Copper

Design and supply of fourteen 42"x125' portable conveyors handling 2,500 t/h, and two 42" overland conveyors totaling more than 6,000 ft.

Heap Leach Stacking
Mobile Stacking Conveyors
Freeport-McMoRan
2007-08, 2010
El Abra
Copper
Design, supply and erection of 8,550 t/h Super Portable™ stacking system, comprising 23 – 250 ft long Super Portables, Horizontal Feed Conveyor, 275' long Horizontal Conveyor and 220' long Radial Stacker. This is the world's largest fixed pad, multiple-lift heap leach stacking system.
 
Heap Leach Stacking
Mobile Stacking Conveyors
Grace SA
2005
Mantos de la Luna
Gold

Design and supply of 30" heap leach stacking system (600 tph)

Heap Leach Stacking
Mobile Stacking Conveyors
BHP Billiton
2004
Cerro Colorado
Copper

Design and supply of 2,400 tph 42"x200' Radial Stacker.

Honduras

Heap Leach Stacking
Overland Conveyors, Mobile Stacking Conveyors
Glamis Gold
2000-01
San Martin
Gold

Design, supply and installation of a complete 1,800 tph heap leach conveyor stacking system at a 12,000 tpd gold mine, comprising three semi-portable overland conveyors (total length nearly 4,000 ft), eight 125-ft portable conveyors, 98-ft feed conveyor, 140-ft track-mounted horizontal bridge, and 120/140-ft radial stacking unit.

Crushing - Process Plant
In-Plant Conveyors
Greenstone Resources
1999
San Andres
Gold

Retrofit of a vibrating grizzly screen in place of the fixed grizzly at a gold plant, to improve the efficiency of the secondary crushing circuit, including structural analysis, design of additional structural members, support members, chutes and hoppers, and supply of fabricated steel.

Heap Leach Stacking
Overland Conveyors, Mobile Stacking Conveyors
Greenstone Resources
1998-99
San Andres
Gold

Preparation of a 3D site model to assist in planning and design of heavy-duty stacking system that would work well in the steeply sloping terrain at a 4.5M tpy gold heap leach project.  Delivery of a complete 1,320 tph stacking system including a fixed overland conveyor, 13 portable conveyors, a 140' horizontal bridge and a 120/140' radial stacking unit.  Design and fabrication of the equipment in cooperation with DIMISA.  Onsite installation assistance.

Turkey

Crushing - Process Plant
In-Plant Conveyors
Eldorado Gold
2010
Kisladag
Gold

Design and supply of three new in-plant conveyors at the crushing plant.

Heap Leach Stacking
Overland Conveyors, Mobile Stacking Conveyors
Eldorado Gold
2010
Kisladag
Gold

Upgrade to 2,400 t/h of the stacking system supplied by TNT in 2006, including design and supply of eight new portable conveyors, new Radial Stacker and Horizontal Conveyor, and new 1,960' overland conveyor with new tripper. Upgraded existing overland conveying and tripper, and all existing mobile conveyors.

Heap Leach Stacking
Overland Conveyors, Mobile Stacking Conveyors
Anatolia Minerals Development
2007-09
Copler
Gold

Design and supply of 36" heap leach stacking system (1,000 tph) and overland conveyor.

Heap Leach Stacking
Overland Conveyors, Mobile Stacking Conveyors, In-Plant Conveyors
Eldorado Gold
2005-06
Kisladag
Gold

Design and supply of 42" heap leach stacking system (1600 tph), and two overland conveyors totaling 8000'.  Design and supply of mechanical components for 13 in-plant belt conveyors, including a fixed stacker.

Crushing - Process Plant
Overland Conveyors, Mobile Stacking Conveyors, In-Plant Conveyors
Eldorado Gold
2005-06
Kisladag
Gold

Design and supply of complete 42" heap leach stacking system (1600 tph), including two overland conveyors totaling 8000' and a fixed stacker.  Design and supply of mechanical components for 13 in-plant belt conveyors.

Saudi Arabia

Heap Leach Stacking
Mobile Stacking Conveyors
Ma'aden Gold
2014
As Suq
Gold

Design and supply of a 42"x120'/140' Radial Stacker.

Tailing and Waste Stacking
Overland Conveyors, Mobile Stacking Conveyors
Ma'aden Phosphate
2009-12
Ras Al Khair Phosphate Facility
Phospho-gypsum

Design and supply of two parallel complete 54" – 1,425 t/h Super Portable™ stacking systems, each of which comprises 7 – 250 ft long Super Portables, Horizontal Feed conveyor, Horizontal Conveyor and Radial Stacker. The overland conveying to feed these two systems (6 Overland Conveyors and 2 Mobile Trippers) totals 22,000 feet.

Crushing - Process Plant, Heap Leach Stacking
Overland Conveyors, Mobile Stacking Conveyors, In-Plant Conveyors
Ma'aden Gold
2001-02
Bulghah
Gold

Design and supply of the entire materials handling system including 5 in-plant conveyors, 3 overland conveyors, 16 portable conveyors, feeder conveyor, horizontal conveyor and a radial stacker for an 18,000 tpd gold heap leach project.

Crushing - Process Plant, Heap Leach Stacking
Overland Conveyors, Mobile Stacking Conveyors, In-Plant Conveyors, Crushing Equipment
Ma'aden Gold
2000-01
Al Hajar
Gold

Layout, design and supply of the complete 300 tph crushing, conveying, agglomeration, and heap leach stacking systems, and associated electrical and sampling systems, at a greenfield gold mine.

Costa Rica

Crushing - Process Plant, Heap Leach Stacking
Mobile Stacking Conveyors, In-Plant Conveyors, Crushing Equipment
Laguna Gold
1998
Rio Chiquito
Gold

Complete 250 tph stacking system, including four portable conveyors and a radial stacker, for this small gold heap leaching operation, and re-powered three additional portable conveyors onsite.  Design and supply of a crushing plant that included a dump hopper and reinforced wall system, primary and secondary crushing and screening, eight in-plant conveyors, magnet, scale, silo and MCC.

Australia

Crushing - Process Plant
Overland Conveyors
Fortescue Metals Group
2011-13
Solomon Hub
Iron Ore
Design, supply and erection of seven iron ore overland belt conveyors, totaling 15 km in length, including all mechanical, electrical, instrumentation, control, structural steel and concrete foundations.  Scope includes two 72", 7400 t/h conveyors, three 54", 5400 t/h conveyors and two 54", 4500 t/h conveyors.  Total installed power = 17,900 kW.  Total structural steel = 8,000 tonnes.
 
Heap Leach Stacking
Overland Conveyors, Mobile Stacking Conveyors
Copperco
2006-07
Lady Annie
Copper

Design and supply of 30" heap leach stacking system (400 tph) and agglomerator transfer conveyor.

Niger

Heap Leach Stacking
Mobile Stacking Conveyors
AREVA
2012
Somair-Arlit
Uranium

Continued support of stacking operations begun in 2008 by designing and supplying three additional 800 mm portable conveyors.

Heap Leach Stacking
Overland Conveyors, Mobile Stacking Conveyors
AREVA
2007-08
Somair-Arlit
Uranium

Design and supply of 800 mm heap leach stacking system (226 tph) and overland tripper conveyor. 

Argentina

Heap Leach Stacking
Overland Conveyors, Mobile Stacking Conveyors
Yamana Gold
2007-08
Gualcamayo
Gold

Design and supply of three overland conveyors totaling 11,200 ft and 2,700 HP, 1,250 t/h.  Design and supply of 16 42"x125' portable conveyors

Burma

Heap Leach Stacking
Mobile Stacking Conveyors
Ivanhoe Mines
1999
Letpadaung
Copper

Complete 3,000 tph heap leach stacking study for a copper project, incorporating truck stacking for run-of -mine ore and the placement of crushed ore by an integrated conveyor and mobile stacking system.

Canada

Crushing - Process Plant
In-Plant Conveyors
De Beers Canada
2005-06
Snap Lake
Diamonds

Design and supply of seven (7) belt feeders, ranging from 6 to 20 m long for kimberlite ore and concentrate handling.

Laos

Heap Leach Stacking
Mobile Stacking Conveyors
PanAust
2004
Phu Bia
Gold

Design and supply of 30" heap leach stacking system (400 tph)

Uzbekistan

Heap Leach Stacking
Mobile Stacking Conveyors
Newmont
2000
Muruntau
Gold

Onsite quality control and erection advice for the supply of new portable conveyors at a 3,000 tph heap leaching operation to process 220M tonnes of low-grade oxide ore from stockpiles to produce approximately 550,000 oz/yr of gold.