What Principal Mineral does

Principal Mineral is a U.S.-based strategic materials company headquartered in Southlake, Texas, that acquires, develops, and scales critical mineral and advanced material supply chains for defense, artificial intelligence infrastructure, energy, and advanced manufacturing customers. The company operates a platform-plus-subsidiaries model built around three core operating assets: Isola Group (acquired June 2026), a century-old global manufacturer of copper clad laminates and prepreg materials for multilayer printed circuit boards; Camden Copper (acquired April 2025), North America's only producer of electrodeposited copper foil for PCBs; and a rare earth fluoride and metal operation using the exclusive REMAFS (Rare Earth Metals via Alternative Fluoride Salt) technology licensed from Ames National Laboratory's Critical Mineral Innovation Hub in 2025, which enables rare earth fluoride production without Hydrofluoric acid.

The company's technology stack combines physical materials processing with an internally branded "intelligence engine" that uses structured data analysis and predictive analytics for supply chain visibility, demand forecasting, and operational optimization. Principal Mineral holds more than 70 patents across critical materials and processing technologies, operates 10 global facilities with approximately 1,300 employees, and maintains research, demonstration, and manufacturing operations in Southlake (TX), Camden (SC), and Ames (IA), with additional European and Asian operations inherited from Isola.

Principal Mineral generates revenue through B2B enterprise sales of physical critical materials — copper foil, copper clad laminates, prepreg materials, rare earth fluorides, and related components — under negotiated contract pricing to defense contractors, AI infrastructure builders, energy companies, and advanced manufacturers. The company executes an enterprise field sales motion targeting anchor accounts in critical industries, distributing through direct B2B relationships rather than channel partners. The company is privately held with $280 million in disclosed funding as of June 2026 from investors including Overmatch Ventures, The New Industrial Corporation, Ensemble VC, J2 Ventures, and Lane42.

Name

Principal Mineral

Legal name

Principal Mineral

Website

https://www.principalmineral.com

Company type

Private

Founded year

2024

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Principal Mineral is a U.S.-based strategic materials platform that supplies critical minerals, copper foil, PCB laminates, and rare earth elements to defense, AI infrastructure, energy, and advanced manufacturing customers through its Isola, Camden Copper, and REMAFS subsidiaries.

Ownership category

akta.pro rank

Product category

Critical Minerals and Strategic Materials

NAICS

Copper Rolling, Drawing, Extruding, and Alloying (33142), Nonferrous Metal (except Aluminum) Smelting and Refining (331410)

SIC

Primary Smelting & Refining Of Nonferrous Metals (3330), Electronic Components & Accessories (3670)

akta.pro primary industry

PCB Materials & Laminates (Copper Clad, Prepreg, Cores) (HDAHAOAJ)

akta.pro secondary industries

Battery-Grade Chemical Processing (LiOH/Li2CO3, Ni/Co Sulfates, Mn Sulfate) (IMAKAFAI), Mine Development & Processing EPC (Critical Minerals) (IMAKAFAM), Non-Ferrous Base Metals Trading (Aluminum, Copper, Zinc, Lead, Tin, Nickel) (IMAKAJAC)

Keywords

• Critical minerals supply
• Copper foil production
• Rare earth elements
• PCB laminate materials
• Strategic materials manufacturing

Headquarters

HQ city

Southlake

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Infrastructure

Revenue model

1. Critical Materials and Mineral Sales: Principal Mineral generates revenue through the sale of strategic minerals and materials including copper foil, rare earth elements, copper clad laminates, and prepreg materials. Revenue is derived from supplying defense and commercial applications across the electronics, energy, and advanced manufacturing sectors.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Principal Mineral develops and supplies strategic metals, high-performance alloys, and advanced materials to defense, AI, energy, and advanced manufacturing customers. Its portfolio includes Isola's copper clad laminates and prepreg materials for multilayer printed circuit boards, Camden Copper's electrodeposited copper foil (North America's only producer), and rare earth fluorides and metals produced via the proprietary REMAFS technology licensed from Ames National Laboratory.

Product overview

Principal Mineral is a strategic materials company operating a platform-plus-subsidiaries model that acquires, develops, and scales critical mineral and material supply chains. The portfolio consists of three main operating subsidiaries: Isola (acquired 2026), a global manufacturer of copper clad laminates and prepreg materials for PCBs; Camden Copper, the only North American producer of copper foil for electronics and defense; and Rare Earth Fluoride and Metal using the REMAFS technology acquired from Ames National Laboratory. The company integrates these assets through an intelligence engine for supply chain visibility, forecasting, and optimization.

Differentiator

Problem solved

Functional benefit

Brands

• Isola: High performance copper clad laminates and prepreg materials for multilayer printed circuit boards
• Camden Copper

Products and services

• Isola Isola develops and manufactures high performance copper clad laminates and prepreg materials used to produce multilayer printed circuit boards for technology, defense, and aerospace applications. It is a critical domestic supplier for advanced-technology PCB manufacturing.
• Camden Copper Camden Copper is North America's only producer of electrodeposited copper foil, a critical input for the printed circuit boards that power defense and commercial technologies. The Camden, South Carolina facility was established in 1991 and was acquired and relaunched by Principal Mineral in April 2025.
• Rare Earth Fluoride and Metal (REMAFS) Rare Earth Fluoride and Metal is a rare earth metal production technology (Rare Earth Metals via Alternative Fluoride Salt) licensed from Ames National Laboratory. It enables production of rare earth fluorides without Hydrofluoric acid for permanent magnet applications in defense and energy.

Quantifiable outcome

• Acquired and relaunched Camden Copper in April 2025, saving local jobs and preserving North America's only copper foil plant
• +1 more outcomes

Named customers2 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability3 records

Feature3 records

Partnerships

Two partnerships are on record, tiered core.

• Isola GroupcoreOEM/ Whitelabel/ Licensing Partner · 1 January 2026Principal Mineral acquired Isola Group in 2026. Isola develops and manufactures high performance copper clad laminates and prepreg materials used to produce multilayer printed circuit boards. The acquisition expands Principal Mineral's role as a vertically integrated upstream global supply chain for PCBs while strengthening supply chain security for advanced-technology applications. Founded in 1912, Isola brings over a century of experience with manufacturing, R&D, technical support, and multi-national sales operations across USA, Europe, and Asia.
• Ames National Laboratory / Critical Mineral Innovation HubcoreStrategic or Co-development Partner · 1 January 2025Principal Mineral partnered with researchers at Ames National Laboratory's Critical Mineral Innovation Hub to acquire exclusive rights to the REMAFS (Rare Earth Metals via Alternative Fluoride Salt) technology in 2025. This innovative rare earth metal production technology enables the production of rare earth fluorides without harmful Hydrofluoric acid. The partnership demonstrates the importance of industry and research partnerships to address critical material vulnerabilities and build innovative and competitive domestic supply chains.

Scale indicators5 records

Recent moves5 records

Expansion highlights6 records

Broad incumbents

• Haynes International: US-based producer of high-performance nickel- and cobalt-based alloys for aerospace, chemical processing, and energy markets. Comparable as an established specialty alloys/materials platform serving defense and advanced manufacturing.
• Carpenter Technology Corporation: Producer of high-performance specialty alloys and engineered materials for aerospace, defense, energy, and industrial markets. Comparable as an established US producer of strategic, specification-grade materials serving defense and advanced manufacturing customers.
• Materion Corporation: Diversified specialty advanced materials supplier serving aerospace, defense, and electronics end markets with engineered materials and beryllium-based products. Comparable as a US-headquartered, multi-product advanced materials platform serving defense and AI/electronics customers.

Emerging players

• Energy Fuels: US-based critical minerals company producing rare earth oxides and uranium. Comparable as a domestic processor pursuing rare earth separation and downstream materials for defense and clean energy supply chains.
• NioCorp Developments: Development-stage US critical minerals company pursuing niobium, scandium, titanium, and rare earth production in Nebraska. Comparable as a US government-aligned critical minerals developer competing for similar reshoring capital.
• USA Rare Earth: US-based emerging critical minerals company pursuing domestic rare earth mining and magnet production. Comparable as a US-focused, government-aligned rare earths platform competing for similar reshoring capital and DoD offtake contracts.

Direct peers

• Rogers Corporation: Specialty engineered materials company producing PCB laminates, high-frequency materials, and EV/advanced electronics materials. Comparable to Isola as a competing PCB laminate supplier serving aerospace, defense, and AI infrastructure customers.
• Lynas Rare Earths: Largest non-Chinese rare earth processor globally, with separation and refining operations in Malaysia and Australia and an upcoming Texas facility. Directly comparable as a non-China rare earth feedstock and processing supplier serving defense and advanced manufacturing.
• MP Materials: The leading US rare earth mining and processing company, operating Mountain Pass. Principal Mineral's REMAFS business and critical minerals focus directly parallel MP Materials' rare earth and magnet strategy, and Principal Mineral's CEO Adam Johnson and board member Sheila Bangalore both came from MP Materials.
• Park Aerospace (acquired by PPG): Historic North American manufacturer of copper clad laminates and PCB materials, acquired by PPG in 2024. Closely comparable to Principal Mineral's Isola subsidiary as a competing PCB laminate supplier with similar end-market exposure.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/principal-mineral

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Subsidiaries3 records

Funding overview

Funding rounds2 records

Investors5 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A2 records

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Principal Mineral