Mining Engineering's Weekly Rundown: Episode 64
Per Reuters, Perpetua Resources, the U.S. Army and Idaho National Laboratory opened a modular pilot plant in Idaho Falls to process antimony trisulfide from Perpetua’s Stibnite Gold Project, supporting a domestic supply chain. Reuters also says Lockheed Martin is negotiating scandium and germanium supply deals with NioCorp, Teck and 5N Plus. Glencore plans a secondary ASX listing, targeting 1.6 million metric tons of copper by 2035.
How this was made

The 30-second read
Why it matters
For traders, the most actionable angle is monitoring whether Lockheed’s negotiations convert into signed supply agreements, and whether Glencore’s ASX listing progresses toward index inclusion. The antimony pilot is strategically important but described without near-term financial metrics.
Market read
The article signals continued government and defense pressure to diversify critical-mineral supply chains, but it does not provide contract terms, signed deals, or new financial guidance.
What to watch
Key missing details include contract volumes, pricing, offtake duration, and whether the pilot plant reaches commercial scale; for Glencore, the listing’s actual execution and costs are not specified.
Background
The piece is a weekly rundown of critical-mineral supply-chain developments, including a US antimony processing pilot, defense contractor sourcing talks, and Glencore’s planned ASX secondary listing.
Ticker impact
The article states Lockheed is negotiating a germanium supply agreement with Teck Resources as part of building domestic critical-mineral sources.
Slight to moderate positive reaction potential as negotiations progress; less impact if terms remain unclear.
The article confirms negotiations but does not disclose contract economics, volumes, or whether Teck’s germanium stream is directly tied to the proposed agreement.
Market effects
Highlights ongoing defense-driven critical-mineral contracting (scandium, germanium) and continued capital-market structuring in mining (secondary listings).
US Idaho antimony processing pilot underscores domestic processing buildout; ASX listing targets Australian institutional capital.
Reinforces the broader shift away from China and other restricted suppliers for strategic minerals used in military equipment.
Counterpoint
Negotiations and pilot plants may not translate into signed, bankable contracts or sustained throughput, limiting near-term earnings impact.
Key entities
- companyPerpetua Resources
Opened a modular antimony trisulfide processing pilot plant in Idaho Falls tied to its Stibnite Gold Project.
- companyLockheed Martin
Negotiating scandium and germanium supply agreements to secure domestic critical-mineral sources.
- companyNioCorp Developments
Named as a scandium supply agreement counterparty for Lockheed, with a proposed 15 metric tons annually.
- companyTeck Resources
Named as a germanium supply agreement counterparty for Lockheed.
- companyGlencore
Plans a secondary listing on the ASX to expand its investor base and support copper growth.




