A massive copper mining proposal in Alaska is once again at the center of a high-stakes legal and political battle, with billions of dollars in potential metals and national security implications on the line. 

The Pebble Project, located in the Bristol Bay region of southwest Alaska, is described by its backers as 'the largest undeveloped copper prospect in the world.'

The project's proponents estimate it contains 80 billion pounds of copper, almost six billion pounds of molybdenum and about 67 million ounces of gold, making it one of the largest known multi-metal deposits globally. 

The site lies in an environmentally sensitive region that includes the world's largest salmon fishery, a factor that has fueled years of controversy and opposition.

After spending over $200 million just on environmental studies, developers sought a federal wetlands permit from the US Army Corps of Engineers in 2017, triggering a federal environmental impact statement released in 2020. 

Pebble Project CEO John Shively told Daily Mail that the company 'could develop this project without harming the fishery, while at the same time giving a lot of economic opportunity to a place in rural Alaska that basically has very little economic opportunity.' 

Despite that finding, the Corps denied the permit, prompting appeals and litigation. 

The Environmental Protection Agency (EPA) later vetoed the project during the Biden administration, and ongoing lawsuits by the company, the State of Alaska and two Alaska Native village corporations remain unresolved. 

Federal attorneys are required to respond to the litigation by February 17, setting up a pivotal moment for the project's future.

Shively argued that the EPA's veto exceeded its legal authority, noting that the Clean Water Act allows vetoes but only under narrow, site-specific circumstances.

 'They vetoed 220,000 acres of state land,' he said, adding that discussions are underway with the Trump administration about withdrawing the veto. 

While the outcome of those talks is uncertain, Shivley said he is confident in its legal position, pointing to recent Supreme Court rulings that limit the scope of federal agency authority under environmental statutes.

Beyond environmental concerns, the project's supporters frame Pebble as strategically critical amid surging global demand for copper. 

One estimate puts the value of the project's copper alone at roughly $400 billion, based on a hypothetical price of $5 per pound. 

Copper demand is expected to rise sharply due to electrification, renewable energy, and artificial intelligence infrastructure. 'The big, big driving force… is AI and data centers,' the developer said, citing rising electricity consumption and rapid expansion of computing infrastructure.

Shively also highlighted concerns about the US's reliance on foreign supply chains, particularly China. China currently produces 40 to 50 percent of the world's copper and controls much of the global processing capacity, according to the project representative. 

He described China's vertically integrated supply chain model, noting that the country can afford to process copper 'basically for free' because profits are made downstream in manufactured goods. 

That dominance, Shively argued, presents strategic vulnerabilities for the US, which has not built a new copper smelter or major base metal processing facility in decades.

Mining, however, is only one part of the supply chain challenge. Shively outlined a three-step process: mining ore, producing concentrate, and refining metal in smelters or alternative processing facilities. 

He said US infrastructure has lagged in the latter stages and called for government involvement to rebuild domestic processing capacity. 

Shively also suggested tariffs or other policy measures could help make US-produced copper competitive with Chinese output.

If the project clears its legal hurdles, the path to production would still be lengthy. After a potential permit approval, the Corps of Engineers would need to revisit and correct issues in its earlier denial, a process estimated to take four months to a year. 

Construction could take roughly three and a half years, followed by the start of operations, meaning full production could be several years away even under optimistic timelines. 

Shively expects legal challenges from environmental groups but believes recent court rulings and potential permitting reforms in Congress could limit delays.

The broader timeline for US copper independence is even longer. Shivley suggested that achieving meaningful independence from Chinese supply chains could take a decade or more, with 2040 cited as a potential milestone if the country undertakes a large-scale national effort. 

He compared the required mobilization to wartime industrial campaigns, saying the effort would require bipartisan support, accelerated permitting, and major investments in processing technology.

Copper's strategic importance extends beyond civilian uses. Shively emphasized its role in defense applications, noting that military platforms such as tanks, aircraft, and ships require large amounts of copper for electrical systems. 

The project also contains rhenium, a metal used in aerospace applications, including jet engines. 'There's no question that controlling our own metal supply is a national security issue,' Shively said.

Supporters argued that domestic mining projects like Pebble could strengthen US competitiveness in AI, manufacturing and defense by securing critical materials and reducing foreign dependence. 

Critics, however, have long warned that mining in the Bristol Bay region could threaten one of the world's most productive fisheries and ecosystems.