Seventeen years. That is how long the United States has waited to bring a brand-new greenfield copper project from a blueprint to a finished metal product. Since 2008, the domestic mining industry has faced a gauntlet of regulatory hurdles, permitting nightmares, and shifting economic tides that have essentially frozen new production in its tracks.
That drought officially ended this week in the Arizona desert.
Taseko Mines has successfully harvested its first copper cathodes at the Florence Copper project. For those not fluent in mining terminology: they aren’t just digging rocks out of the ground; they are producing high-purity, finished copper sheets ready for the market. This is a massive win for Taseko, sure, but it’s a bigger deal for a country that is currently gasping for domestic critical minerals.
At Skillings, we’ve been tracking this sector for over a century. We’ve seen the booms and the busts. But what’s happening at Florence Copper isn’t just another entry in the ledger. It is a fundamental shift in how the U.S. secures its industrial future.
The 17-Year Gap and the Domestic Crisis
The last time a new greenfield copper mine came online in the U.S. was 2008. To put that in perspective: the iPhone was barely a year old, and the concept of a mass-market electric vehicle was still largely a punchline. Since then, the demand for copper has exploded, driven by everything from the global battery revolution to the massive power requirements of AI data centers.
Yet, while demand skyrocketed, U.S. production remained stagnant or declined. Here is the uncomfortable truth: the U.S. has been exporting nearly 48% of its mined copper concentrate. Why? Because we don’t have the domestic smelting and refining capacity to handle it. We dig it up, ship it overseas, and then buy it back as finished goods.
Florence Copper changes that math. By producing LME Grade A copper cathodes on-site, Taseko is bypassing the middleman. Every pound produced here is destined to stay within U.S. borders, feeding the automotive, aerospace, and defense sectors that are currently at the mercy of volatile global supply chains.
The Numbers: A 1.5 Billion Pound Legacy
Let’s look at the data, because the scale of this project is significant. Florence Copper isn’t a small-scale pilot project; it is a long-term industrial powerhouse.
- Total Production: 1.5 billion pounds of copper over a 22-year lifespan.
- Annual Capacity: 85 million pounds once it reaches full nameplate capacity.
- Rank: Once fully operational, Taseko will become the third-largest copper cathode producer in the United States.
That is not a rounding error. That is a strategic asset. In a market where we are constantly analyzing copper price forecasts and supply risks, having a reliable, domestic source of finished cathode is the ultimate hedge against geopolitical instability.
Technology: Why Florence Isn’t a Traditional Mine
One of the reasons Florence Copper succeeded where others failed is its approach to extraction. You won’t see a massive open pit or a sprawling underground tunnel network here. Instead, Taseko is utilizing in-situ copper recovery (ISCR).
ISCR is, in many ways, the “surgical” approach to mining. It involves injecting a water-based solution into the ore body to dissolve the copper in place, then pumping that copper-rich solution back to the surface for processing.
The advantages are hard to ignore:
- Lower Cost: Without the need to move millions of tons of waste rock, the capital and operating costs are significantly lower than conventional methods.
- Smaller Footprint: The surface disruption is minimal. No tailings piles, no massive dust clouds, and significantly lower water usage.
- Speed to Market: Because the environmental impact is so much lower, the permitting process: while still grueling: is actually navigateable.
For an industry that is often treated as a villain in environmental circles, ISCR represents a path forward. It’s a way to get the minerals we need for the “green transition” without creating the very environmental scars that critics point to. As we noted in our March 2025 review, the “green” economy cannot exist without “brown” industry, but projects like Florence prove that the industry can evolve.
Feeding the AI and EV Hunger
We are currently in the middle of a perfect storm. On one side, you have the automotive industry’s push toward electrification. On the other, you have the sudden, voracious appetite of AI data centers. Both are copper-intensive.
An EV uses roughly four times as much copper as an internal combustion engine vehicle. A single large-scale AI data center can require miles of copper cabling and massive amounts of copper-heavy power infrastructure.
If the U.S. wants to lead in these fields, it cannot rely on a 17-year-old production model. We are seeing a similar urgency in other sectors, such as the Rare Earths transition, where the West is frantically trying to break the stranglehold of foreign monopolies.
Taseko’s achievement at Florence provides a blueprint for how to do this. By focusing on domestic manufacturing needs and utilizing advanced recovery technology, they’ve created a project that is both economically viable and strategically essential.
The Skillings Legacy: Why This Matters to Us
At Skillings Mining Review, we have been reporting on the pulse of the industry since the days when the Iron Range was the center of the industrial world. We’ve seen the evolution of mining from pickaxes to autonomous haul trucks and now to in-situ recovery.
This milestone at Florence Copper feels like a homecoming of sorts. It’s a return to the idea that the U.S. can: and should: be a leader in primary production. The project was completed on-time and on-budget, which is a rarity in modern mining. It shows that when the technology is right and the management is focused, the U.S. can still build big things.
The Strategic Calculus: What’s Next?
So, what happens now? Taseko is currently in the commercial ramp-up phase. The first cathodes have been harvested, but the goal is to hit that 85-million-pound-per-year run rate as quickly as possible.
The industry will be watching Florence closely. If ISCR proves as successful and scalable as the initial results suggest, it could unlock other stranded copper assets across the Southwest. There are several deposits in Arizona and New Mexico that have been deemed “uneconomic” or “environmentally sensitive” for traditional mining. Florence might just have provided the key to unlocking them.
But don’t expect a sudden flood of new copper. The “clock” on mining projects is notoriously slow. Even with the success of Florence, the global supply gap is widening. As we’ve discussed in our market analysis, we are entering a period where “physical” copper will be significantly more valuable than “paper” copper. Having the metal in the vault: or in this case, on the rack in Arizona: is what matters.
The Final Word
The launch of the 24/7 production phase at Florence Copper is a watershed moment. It signals that the long, 17-year winter of U.S. greenfield copper production is finally over.
But let’s not get complacent. One mine does not a supply chain make. The U.S. still faces a massive deficit in its ability to meet domestic demand. We are seeing similar struggles in other sectors, from the future of U.S. Steel to the development of deep-sea mining technology.
The lesson from Florence is simple: innovation works, but it takes time, capital, and a relentless focus on the end goal. Taseko Mines has delivered a win for Arizona and a win for the country. Now, the rest of the industry needs to follow suit.
For more deep dives into the projects shaping the global supply chain, check out our recent archives, including the January 2025 and February 2025 editions of Skillings Mining Review. The 2026 landscape is changing fast, and we’re here to make sure you have the data to navigate it.
