The Copper Flat Project pairs a historic mining district with 21st-century innovation — dry-stack tailings, water conservation, and a commitment to responsible production and social license.
Copper is essential to the technologies that power daily life and the transition to clean energy — and reliable domestic supply has never mattered more.
At New Mexico Copper Corporation, sustainability is at the heart of our operations. The Copper Flat Project is designed to produce high-quality copper while minimizing environmental impact, conserving water, fostering community growth, and adhering to the highest governance standards.
We're not just mining copper — we're building a sustainable future for New Mexico and beyond.
Since the 1870s, the area surrounding Hillsboro, New Mexico has been known for its rich deposits of gold, silver, and copper. Located in Sierra County, Copper Flat sits within a large band of porphyry copper that passes through New Mexico and Arizona. As a brownfield restart, the project continues this history of economic contribution to the region and the State — built to a modern standard of safety, stewardship, and community partnership.
New Mexico Copper Corporation is a New Mexico company, formed in 2010 and run by New Mexicans. It owns, permits, develops, and will operate Copper Flat. The project is privately funded by Tulla Resources Group, a family-owned Australian group whose capital is invested directly into New Mexico — into local jobs, local contractors, state and federal taxes, and decades of reclamation that stay right here in Sierra County. Tulla is a long-term, patient owner: its Norseman Gold operation has run continuously for more than 65 years.
Aerial view of the Copper Flat site — worked since the 1870s and now being developed to a modern standard of safety and stewardship.
Copper Flat is being designed around modern mining innovation — prioritizing tailings safety, water conservation, and responsible production from the ground up, and aligning with the leading international standards for the industry.
Rather than a conventional wet tailings dam, Copper Flat will use a Dry-Stack Tailings Storage Facility. Tailings are filtered to a low-moisture "cake," conveyor-placed and compacted into a stable, engineered landform. This removes the dam-failure modes associated with conventional wet tailings and dramatically reduces water demand — the design cuts water requirements from roughly 6,100 acre-feet under a conventional dam to about 1,050 acre-feet, among the largest dry-stack facilities in the Americas.
From ~6,100 acre-feet under a conventional tailings dam to ~1,050 acre-feet with dry-stack — conserving New Mexico's most precious resource. NMCC has secured 1,051 acre-feet of perfected water right for mining use.
Our tailings program is being developed for conformance with the Global Industry Standard on Tailings Management (GISTM) — the leading international benchmark for tailings safety and governance, organized around 15 principles spanning affected communities, integrated knowledge, design, management, governance, and public disclosure. NMCC is conducting a principle-by-principle conformance review with our Engineer of Record.
Looking ahead, NMCC intends to pursue The Copper Mark — the metals industry's independent assurance framework for responsible production, evaluating a site against comprehensive environmental, social, and governance criteria aligned with international standards and the UN Sustainable Development Goals.
Designing waste out of the process — surplus and remanufactured equipment, reuse of wear components, refurbishing, and recyclable packaging to extend material life.
Supplier partnerships to recycle steel wear components, recyclable shipping containers, and biodegradable "green" chemistry for dust control.
High-efficiency motors, electric vehicles, and renewable power — with AI and smart technology to optimize production and minimize footprint.
Every use of water in New Mexico earns its place — farms, families, recreation, and industry alike. Here is where Copper Flat fits, using the State's own numbers.
Copper Flat Mine — entire operation · ~1,051 acre-feet/year
The homes of Sierra County — all ~11,400 of us (NM residential average, 81 gallons/person/day) · ~1,030 acre-feet/year
Three 18-hole Southwest golf courses (USGA regional average) · ~1,050–1,300 acre-feet/year
The conventional tailings-dam design Copper Flat rejected · ~6,100 acre-feet/year
The water is already ours: NMCC holds 1,051 acre-feet of perfected water rights of record with the State Engineer — no new appropriation, and no call on anyone else's allocation. Inside the plant, our dry-stack design recovers and recycles 85–93% of process water before a drop of new water is needed.
Roughly four acre-feet of water supports one full-time career with benefits at Copper Flat — about 270 operations jobs on ~1,050 acre-feet, year after year. No other use of an acre-foot of water in Sierra County creates more jobs, more payroll, or more tax revenue.
At a time when New Mexico is being pressed to reduce Rio Grande water use, Copper Flat's dry-stack design cut the project's water demand by roughly 83% — from ~6,100 acre-feet under a conventional tailings dam to ~1,050. We aren't just mining copper. We're mining hope for a community — on a fraction of the water anyone expected a copper mine to need.
Measured the way the industry measures it — fresh water per ton of ore processed — Copper Flat's dry-stack design uses roughly one-quarter of the fresh water of a typical conventional copper operation. Put another way: it takes less than ten gallons of water to produce a pound of Copper Flat copper. Your morning cup of coffee carries more embedded water than that.
≈ ¼
the fresh water per ton of ore of conventional copper mining
200+ EVs
worth of copper produced from each acre-foot of water
⅓ inch
of Elephant Butte's lake level at normal storage — our entire annual use
0.03%
of New Mexico's total annual water withdrawals — all uses, statewide
Sources: New Mexico 50-Year Water Action Plan (statewide residential use of 81 gallons per person per day); U.S. Census (Sierra County population); USGA Water Resource Center, Southwest-region golf-course water use (~4 acre-feet per irrigated acre); NM Office of the State Engineer, Water Use by Categories (statewide withdrawals); Cochilco (Chilean Copper Commission) published industry benchmarks for fresh-water use per tonne of ore processed; Copper Flat NI 43-101 feasibility production basis; WSP Feasibility Study design basis for conventional vs. dry-stack water demand and process-water recovery; NMCC perfected water rights of record with the NM Office of the State Engineer. Figures rounded.
NMCC is focused on earning and maintaining social license by implementing world-class ESG strategies across the planning, construction, and operation of Copper Flat.
Designed to support climate action, innovation, water and energy efficiency, circular economy, waste management, and biodiversity conservation.
High safety standards and safe, healthy workplaces — plus job opportunities for local, regional, and Indigenous people.
Committed to ethical business policies, equality, and growth opportunities for community workers, local contractors, and suppliers.
Aligning with partners actively engaged in initiatives that drive global climate action and responsible development.
Copper Flat brings capital into New Mexico — and keeps the value here. Wages, local purchasing, state and federal taxes, and decades of reclamation are spent and captured in Sierra County and across the state, through a long-term commitment to our neighbors.
Economic figures: Arrowhead Center (NMSU) socioeconomic impact study of the Copper Flat Mine Project in Sierra County, New Mexico (2012), updated to 2024 economics.
Copper Flat has advanced through years of rigorous state and federal review in partnership with cooperating agencies — spanning the full scope of approvals required to build and operate responsibly.
Copper Flat will create hundreds of good-paying jobs — with a strong priority on hiring locally and developing New Mexico talent through training and institutional partnerships.
Operations roles offer competitive wages and benefits, with opportunities spanning the full project lifecycle.
Get in TouchNMCC posts open positions here as the project advances toward construction. Click a position to see responsibilities and qualifications. To apply, email your resume to info@nmcopper.com with the position title in the subject line.
Lead NMCC's owner construction organization through pre-construction and execution — contractor coordination across all packages, schedule and quality oversight, and interface management with our Engineer of Record.
Full-time · Hillsboro, NM · Posted July 2026 · View responsibilities & qualifications
Key responsibilities
Qualifications
To apply, email your resume to info@nmcopper.com with the position title in the subject line.
Owner's-team construction leads for defined plant areas: process plant (crushing, grinding & flotation), dewatering & filtration, site infrastructure, and earthworks & tailings.
Full-time · Multiple positions · Hillsboro, NM · Posted July 2026 · View responsibilities & qualifications
Key responsibilities
Qualifications
To apply, email your resume to info@nmcopper.com with the position title in the subject line.
Senior operating leader for the Copper Flat restart — pre-production planning through commercial operations. Open-pit experience required; contract-miner oversight experience valued.
Full-time · Hillsboro, NM · Posted July 2026 · View responsibilities & qualifications
Key responsibilities
Qualifications
To apply, email your resume to info@nmcopper.com with the position title in the subject line.
Cost, schedule, and progress reporting for the owner's team through engineering and construction.
Full-time · Hillsboro, NM · Posted July 2026 · View responsibilities & qualifications
Key responsibilities
Qualifications
To apply, email your resume to info@nmcopper.com with the position title in the subject line.
Front-of-house administration for the Hillsboro project office — document control support, visitor coordination, and community inquiries. Sierra County candidates encouraged.
Full-time · Hillsboro, NM · Posted July 2026 · View responsibilities & qualifications
Key responsibilities
Qualifications
To apply, email your resume to info@nmcopper.com with the position title in the subject line.
Operations hiring for approximately 270 full-time roles — equipment operators, plant operators, maintenance technicians, supervisors, and technical staff — begins ahead of first production. If you want to be considered as roles open, email info@nmcopper.com with the subject line "Talent Register" and tell us your trade, experience, and where you live. Sierra County and regional applicants are prioritized.
Notices that New Mexico Copper Corporation is required to make available to workers or the public under federal or state law are posted here for the required posting period.
Straight answers about Copper Flat — what it is, who is behind it, and how we are building it responsibly.
A lasting commitment to Sierra County — through construction, operations, and decades of reclamation.
Project Office85 Copper Rock Road, Hillsboro, NM 88042
MailingPO Box 4209, Truth or Consequences, NM 87901
General Inquiriesinfo@nmcopper.com
Stephen Crosby — SVP, Project Developmentinfo@nmcopper.com
1-505-382-5770