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ROSEMONT COPPER A Bridge to a Sustainable Future

Our plan will set high standards for environmental protection while creating an average of 2,900 jobs each year for Arizona and injecting $19 billion into Arizona’s economy. As federal, state, and local agencies continue an exhaustive study to ensure that proper environmental protections are in place prior to issuing permits, we invite you to review this fact booklet and give us your comments and ideas.

Our renewable future depends on copper, yet today 34 percent of our supply comes from abroad. That is one reason why the General Mining Act of to

1872 mine

continues claims


guarantee such





that are essential for lowering our dependency on foreign copper. Located in an existing mining district, Rosemont Copper will set a high standard for sustainable mining practices, including using solar power, consuming less than half the water as traditional mines, and reclaiming the site as permanent open space by revegetating throughout the life of the mine.

Honoring a Proud History

By 1863, one in every four people in Arizona was a miner.

From the early Native Americans who dug for minerals, to the rugged pioneers who settled the state in search of a better life, to the hard working men and women today who produce more copper than every other state combined—mining has always been a part of Arizona. Rosemont Copper’s vision is to utilize the latest mining technologies to create a bridge from Arizona’s mining past to a high-tech, renewable future.

Answering the De

While Setting High En

Solar and Renewable Energy Powered

Lowest Water Use

Administration buildings will be

Rosemont will use less than

New technologies and

powered by solar panels on

half the water of traditional

environmental best practices

the site, and new transmission

mines through progressive

will ensure that all federal, state,

lines will follow routes

water conservation and water

and local air quality standards

approved in a public process.

recycling. The groundwater

are met well within required

that is pumped for mining

thresholds for dust control.

operations is already being recharged using water from the Central Arizona Project.

Air Quality Protection

emand for Copper

nvironmental Standards

Smallest Footprint

Reclamation Begins on Day 1

Permanent Land Conservation

Rosemont Copper can

Mine and processing areas all

Rosemont will maintain a

provide more than 10

have bonding to guarantee

30,000 acre working cattle

percent of the U.S.

reclamation, including

ranch, and dedicate the

copper supply while

recontouring and revegetating

revegetated mining area as

requiring less than half the

throughout the life of the mine.

permanent ranching and

land area of other Pima

wildlife open space once

County mines.

reclamation is complete.

high-tech equipment

transmission lines

wind power

New transmission and distribution systems for renewable energy will require millions of pounds of copper.

A single wind energy turbine contains more than 1 ton of copper.

New technologies and their copper wiring can play a key role in Arizona’s future economy.

solar heating

solar panels

Copper is necessary for distributing solar heated water and copper pipes remain the most energy efficient option.

New low-cost photovoltaics rely on copper.

hybrid cars Hybrid cars use twice the copper of their traditional counterparts.

green home The average “green� home contains more than 439 pounds of copper.

Copper is the essential element to a green economy Renewable, sustainable energy sources and new technologies will require tremendous amounts of copper, with the average person already using more than 1,500 pounds of copper in a lifetime.

more than

1 ton of copper is used in a single large wind turbine

Copper has unique properties which make it crucial to new green technologies.

34% of the U.S. copper supply comes from outside the country.

Latest oxide-ore processing technology to reduce water use Electrowinning Raffinate Pond

1 Ore Pad


Solvent Extraction


Lined Solution Pond


Oxide-ore placed on lined leach pad.


The ore is irrigated with weak sulfuric solution.


The solutions is pumped to a solvent extraction and electrowinning plant to produce pure copper cathodes. The water is then recycled back to the oxide ore pad.

Environmentally responsible, efficient operations The diagrams below illustrate the detailed plan of operations for the life of the mine, including reclamation that begins on Day 1.




Processing and Administration Excavation begins Oxide ore pad

Screening berm

Screening berms are put in place, and topsoil is removed and stored for later use.

Oxide ore heap

Dry stack tailings Revegetation begins

Dry stack tailings will result in the smallest footprint and maximized water conservation

Extensive reclamation

Extensive greenhouse and site testing have identified native plants best suited for revegetation.

Sulfide-ore processing best practices to recycle water and minimize footprint

1 Crushing

Grinding Dry Stack

2 Flotation



Thickeners then Filters 1

Sulfide-ore is first crushed then ground into a slurry.


Flotation process produces copper concentrates.


Copper concentrates are de-watered, the water is recycled back to crushing, and the copper goes to market for further processing.


Tailings are dewatered and sent to dry stack, and the water is recycled back to flotation.

Our Water Conservation Commitment Rosemont is committed to importing water from the Central Arizona Project Canal to recharge pumped groundwater, ensuring neutral impact to local groundwater sources. Rosemont has agreed to guarantee the viability of private wells in the pumping vicinity near Sahuarita.



YEAR 21 Buildings and minor roads removed

Reclamation continues Reclamation continues

Dust and water runoff will be controlled throughout, and all slopes will be less than 18 degrees.

Processing areas will all be reclaimed to ranching and wildlife open space uses.

Reclamation complete

The site is reclaimed as permanent open space.

Rosemont Copper will inject

a total of $19 billion

into the Arizona economy over the life of the mine, and will create an average of 2,900 jobs annually for the state.

dramatic economic benefits







indirect jobs nationally


1700 local indirect jobs



$3.3 billion increased


average income

personal income over


the life of the mine.


Average jobs per year


$32 m

ta x r e v e n u e (that can go toward roads, schools, and services) local

More than $19 million

$306 million

$19 m

annually in local

in local taxes over the

tax revenue.

life of the mine. Total annual tax revenue. (Annual federal tax revenue of $128 M)

real construction estate





lo c a l st i m u lu s services

$701 million in local economic stimulus each year.



11% retail & wholesale

$1.5 billion in local


purchases over the life of the mine.

Spending by sector

Source: Arizona State University Report 2009/ REMI regional economic forecasting model (updated for national impact)

Setting a new standard for mining A smaller footprint with a higher yield Resource protection, water conservation, and land reclamation 4,200 new direct and indirect local, state and national jobs Billions in local and state economic stimulus Millions in tax revenue

South Tucson






Green Valley


Santa Rita Ridge

Rosemont Operations Printed on recycled paper

Rosemont Copper Brochure  

Rosemont Copper Broshure (single page)

Rosemont Copper Brochure  

Rosemont Copper Broshure (single page)