r/energy

Phoenix Tailings (Exeter, New Hampshire) uses electrolysis to recover rare-earth…

Brief

Phoenix Tailings' small refinery in Exeter, New Hampshire uses electrolysis to extract rare-earths from mining tailings; a $500 million Pentagon loan will fund a new plant to scale output from about 200 kg to 120 tonnes in two years, with 14–18 months to build. The move aims to shore up U.S. separation/metallization amid a Middle East war and China sourcing bans; the Reddit post linked the Fortune article but included no community responses.

Why it matters

Phoenix Tailings (Exeter, New Hampshire) uses electrolysis to recover rare-earth elements from mining tailings stored in 1‑ton bags and currently processes ~200 kg, aiming to scale to 120 tonnes within two years.

Key details

  • The Pentagon approved a $500 million loan to build a new factory (14–18 months to construct) to expand U.S. separation and metallization capacity, reducing reliance on China and supporting munitions production for systems like Tomahawk missiles, THAAD, and F‑35s.
  • The Reddit post (r/energy, 2026-08-03) linked to a paywall‑removed Fortune piece but provided no community comments in the submission, so reader reactions, feasibility challenges, or timeline skepticism are not recorded here.
Source evidence

A giant American flag hanging on the wall of a warehouse in New Hampshire hints at the national importance of the elements bound inside the mining waste stored in 1-ton bags. The company uses electrolysis to separate the key critical elements President Donald Trump’s administration desperately wants to produce domestically from the powder left behind at traditional mines.
The small Phoenix Tailings refinery tucked inside an office park in Exeter, New Hampshire, could play a key role in helping America break the chokehold China has on the processing of critical minerals, but it will take 14 to 18 months to build a new factory with a $500 million loan from the Pentagon to drastically expand the company’s separation and metallization capacity, a particularly weak stage in the U.S. mines-to-magnets supply chain.
The task that workers carry out in heat-resistant suits and sealed face masks has become more urgent with the war in the Middle East rapidly drawing down munitions because critical minerals are a key ingredient in widely used U.S. weapons systems such as Tomahawk cruise missiles, THAAD interceptors and F-35 fighter jets. While the White House is demanding military contractors speed up weapons production, it’s also imposing even stricter rules banning them from sourcing critical-mineral components from China.
Read more [paywall removed for Redditors]: https://fortune.com/2026/08/03/phoenix-tailings-rare-earth-refinery-new-hampshire-pentagon/?utm_source=reddit/

Link: https://fortune.com/2026/08/03/phoenix-tailings-rare-earth-refinery-new-hampshire-pentagon/?utm_source=reddit/

Subreddit: r/energy