GreenMet

What GreenMet does

GreenMet is a Washington, D.C.-based strategic advisory and consulting firm founded in 2021 that operates at the intersection of private capital, U.S. government policy, and critical mineral supply chain development. The firm is led by Founder and CEO Drew Horn, a former senior U.S. government official and Army Special Forces officer, alongside COO Nicholas Denno and Chief Geologist Ned Mamula. GreenMet serves mining companies, project developers, and federal stakeholders by helping clients navigate U.S. government funding programs (DOE, DoD, EXIM, DFC), secure capital from institutional investors and export credit agencies, and structure strategic partnerships across allied jurisdictions. The company's go-to-market is enterprise-direct, with engagements structured around client-specific capital formation and federal engagement needs.

The firm's operational footprint extends beyond pure advisory through a hub-and-spoke processing architecture centered on a $150M critical minerals processing hub in Rupert, West Virginia, which recovers rare earth elements from coal tailings. GreenMet has helped orchestrate multi-party supply chain platforms including the North American Critical Manganese Alliance (NACMA), a Tanbreez-to-Ucore heavy rare earth offtake chain in Greenland and Louisiana, and a first mine-to-market antimony supply chain via the Mojave Project. The company is also expanding into operating manufacturing through two India-based subsidiaries: N.A.N. MagneTech (NdFeB rare earth magnet manufacturing) and N.A.N. Silox GreenMet (lithium-ion battery recycling), both 2026 ventures. Reported targeted capital commitments across these initiatives exceed $2 billion, though the firm itself derives revenue primarily from professional advisory and capital formation fees rather than commodity production.

Name

GreenMet

Legal name

Greentech Minerals Holdings (doing business as GreenMet)

Website

https://greenmet.com

Company type

Private

Founded year

2021

Operating status

Operating

Headcount range

11–50 employees

Short description

GreenMet is a Washington, D.C.-based strategic advisory firm that helps mining companies, project developers, and federal stakeholders secure U.S. government funding, capital, and partnerships for critical mineral supply chain projects across rare earths, manganese, and antimony.

Ownership category

akta.pro rank

Product category

Strategic Advisory Services for Critical Minerals

NAICS

Other Scientific and Technical Consulting Services (54169), Environmental Consulting Services (54162)

SIC

Investors, Nec (6799), International Affairs (9721)

akta.pro primary industry

Sustainability & ESG Consulting (BPAHACAK)

akta.pro secondary industries

Climate Policy, Governance & NDC Support (BPADALAA), Local Content, Trade & Supply-Chain Regulation (Import duties, anti-dumping) (EUAMANAK)

Keywords

• Critical minerals advisory
• Strategic government consulting
• Rare earth supply chain
• Capital formation services
• Mining project development

Headquarters

HQ city

Washington

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D

Revenue model

1. Strategic Advisory Services: GreenMet provides advisory services to mining companies and project developers seeking U.S. government funding, capital formation, and strategic partnerships. Services include identifying and securing government grants and concessional loans, federal engagement, and alignment with U.S. critical mineral supply chain priorities.
2. Capital Formation and Strategic Development: GreenMet serves as exclusive Strategic Development and Capital Formation Partner for platforms like NACMA, coordinating up to US$1 billion in long-term capital commitments from strategic industry participants, institutional investors, infrastructure funds, export credit agencies, and government-supported financing programs.
3. Strategic Advisory - Government Relations: Engagement with federal agencies including Department of Energy's Loan Programs Office, Department of Defense, Export-Import Bank, and U.S. International Development Finance Corporation to unlock non-dilutive capital for clients.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels6 records

Core offering

GreenMet is a strategic advisory and consulting firm that serves as a conduit between private capital, government, and critical mineral innovation. The firm provides advisory services, capital formation coordination, government engagement, and partnership facilitation to mining companies and project developers working in critical minerals, defense, advanced manufacturing, and energy. It also develops integrated processing platforms, including a hub-and-spoke processing network in Rupert, West Virginia, the North American Critical Manganese Alliance (NACMA), and joint venture manufacturing facilities in India.

Product overview

GreenMet is a strategic advisory and consulting firm that serves as a conduit between private capital, government, and critical mineral innovation. The company helps clients navigate Washington and succeed in highly strategic sectors including defense, critical minerals, artificial intelligence, energy, fuels, and advanced manufacturing. GreenMet operates at the intersection of government, capital, and national security, providing relationships, market intelligence, and strategic guidance. The company does not offer a distinct software product or technology platform, but rather provides advisory services, capital formation support, and strategic partnership facilitation. GreenMet's integrated platform includes Advisory, Capital, and Innovation divisions focused on enabling critical mineral projects through government engagement and financing support.

Differentiator

Problem solved

Functional benefit

Products and services

• Strategic Advisory Services Advisory services to mining companies and project developers seeking U.S. government funding, capital formation, and strategic partnerships. Services include identifying and securing government grants and concessional loans, federal engagement, and alignment with U.S. critical mineral supply chain priorities. Clients are mining companies, project developers, and critical mineral firms.
• Capital Formation and Strategic Development Partnership End-to-end capital formation partner service coordinating long-term capital commitments from strategic industry participants, institutional investors, infrastructure funds, export credit agencies, and government-supported financing programs. GreenMet operates as exclusive Strategic Development and Capital Formation Partner for NACMA and similar platforms.
• Government Relations and Federal Engagement Direct coordination with U.S. federal agencies including the Department of Energy's Loan Programs Office, Department of Defense, Export-Import Bank, and U.S. International Development Finance Corporation to unlock non-dilutive capital for clients. Service is offered to mining companies and project developers seeking federal grants and loans.
• North American Critical Manganese Alliance (NACMA) An integrated Canada-United States manganese supply chain platform anchoring the North American Critical Manganese Alliance, spanning from ore extraction through advanced manufacturing. Developed jointly with Canadian Manganese Company, AmForge, and Flash Metals USA, supporting defense, aerospace, energy storage, and other strategic industries.
• Rupert West Virginia Critical Minerals Processing Hub Centralized processing hub in Rupert, Greenbrier County, West Virginia, that recovers rare earth elements from coal tailings using combined processing technologies. The hub anchors GreenMet's hub-and-spoke network handling minerals from Greenland, Canada's Woodstock Manganese Project, and Cameroon.

Quantifiable outcome

• Secured $120 million letter of intent from U.S. Export-Import Bank for Tanbreez rare earth project
• +2 more outcomes

Named customers6 records

Segments4 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

14 partnerships are on record, tiered core and flagship.

• N.A.N. MagneTech Pvt. Ltd.coreStrategic or Co-development Partner · 22 July 2026Subsidiary of N.A.N. GreenMet establishing India's first fully integrated NdFeB rare earth magnet manufacturing facility in Naidupeta, Andhra Pradesh, with Dr. Masato Sagawa's Japanese technology.
• Canadian Manganese Company Inc.flagshipStrategic or Co-development Partner · 15 July 2026GreenMet appointed as exclusive Strategic Development and Capital Formation Partner for NACMA, leading efforts to secure up to US$1 billion in long-term capital commitments to support phased development including the Woodstock Project, Canadian hydrometallurgical processing, and U.S. specialty processing operations.
• Canadian Manganese Company Inc.flagshipStrategic or Co-development Partner · 13 July 2026Canadian Manganese Company, GreenMet, AmForge LLC, and Flash Metals USA established the North American Critical Manganese Alliance (NACMA), a strategic partnership to develop the first fully integrated North American manganese supply chain anchored by Canadian Manganese's Woodstock Project in New Brunswick.
• AmForge LLCcoreStrategic or Co-development Partner · 13 July 2026Part of NACMA alliance for developing integrated North American manganese supply chain, contributing industrial manufacturing and specialty processing capabilities.
• Flash Metals USA, Inc.coreStrategic or Co-development Partner · 13 July 2026Part of NACMA alliance bringing specialty metals processing expertise to the integrated North American manganese supply chain development.
• Silox GroupcoreStrategic or Co-development Partner · 18 June 202650:50 joint venture N.A.N. Silox GreenMet Pvt. Ltd. to develop lithium-ion battery recycling and critical minerals recovery facility in Andhra Pradesh, India, producing battery-grade metal salts.
• US Critical Materials Corp.coreStrategic or Co-development Partner · 26 September 2025Strategic advisory alliance to advance domestic rare earth production with gallium from the Sheep Creek deposit in Montana at the forefront, supporting U.S. national security and technological independence.
• West Cobar Metals LtdcoreStrategic or Co-development Partner · 24 September 2025Partnership to support West Cobar's engagement with the United States on strategic critical mineral initiatives for Australian projects (Bulla Park and Salazar) focused on copper, antimony, rare earth elements, scandium, and titanium.
• Locksley ResourcescoreStrategic or Co-development Partner · 28 August 2025Partnership to advance the Mojave Project in California for building the first mine-to-market antimony supply chain in the United States, including collaboration with Rice University on domestic antimony processing.
• Ucore Rare Metals InccoreStrategic or Co-development Partner · 26 August 2025GreenMet facilitated 10-year offtake letter of intent connecting Critical Metals' Tanbreez Project with Ucore's Department of Defense-funded rare earth processing facility in Alexandria, Louisiana, for up to 10,000 metric tons annually of heavy rare earth concentrate.
• Bahia Graphite Corp.coreImplementation/ SI/ Consulting Partner · 17 June 2025Retained GreenMet as strategic advisor to unlock U.S. government grant and loan opportunities for high-quality graphite assets in Bahia State, Brazil, strengthening North American relevance.
• Tanbreez Mining Greenland A/SflagshipStrategic or Co-development Partner · 4 April 2025Strategic partnership to secure critical rare earth supply from the Tanbreez Project in southern Greenland, one of the largest untapped heavy rare earth deposits outside China with over 27% HREE content.
• ReElement TechnologiescoreStrategic or Co-development PartnerPartner in $1.4 billion partnership with U.S. Department of War's Office of Strategic Capital and Vulcan Elements for 10,000 metric tonnes of NdFeB magnet production capacity.
• American Resources CorporationcoreStrategic or Co-development PartnerPartner in landmark $1.4 billion partnership with Department of War's Office of Strategic Capital for domestic rare earth magnet supply chain.

Scale indicators8 records

Recent moves6 records

Expansion highlights6 records

Emerging players

• Appian Capital Advisory: Investment advisor to mining-focused private equity funds targeting base, precious and critical metals. Adjacent to GreenMet as a source of strategic capital for critical mineral developers, and a potential competitor for advisory mandates tied to financing.
• Orion Resource Partners: Mining-focused private equity and credit manager providing capital to critical and battery mineral projects. Comparable to GreenMet in pairing capital with strategic support for mining developers, though from a capital-provider rather than advisory perspective.

Broad incumbents

• McKinsey & Company: Global management consulting firm with significant mining, metals and public sector practices. Comparable to GreenMet in advising governments and mining clients on critical mineral strategy, supply chain resilience and capital deployment, though at substantially greater scale and scope.
• Hatch Ltd: Global engineering and project management consultancy with deep mining and minerals processing practice. Comparable to GreenMet in serving mining clients through the project lifecycle, but anchored in engineering and EPC delivery rather than government-relations-driven capital formation.
• Wood Mackenzie: Global research and consultancy covering mining, metals and energy. A broad incumbent that competes with GreenMet for advisory mandates tied to critical mineral project development, mine financing and supply chain strategy, though at much greater scale and breadth.
• Boston Consulting Group: Global management consultancy with practices covering energy, materials and public sector engagements. A broad incumbent whose critical minerals and government advisory work overlaps with GreenMet's positioning, particularly on strategy, policy and large-scale capital mobilization mandates.

Direct peers

• SLR Consulting: Global environmental and sustainability consultancy with a strong mining and critical minerals advisory practice. Comparable to GreenMet in advising mining clients on permitting, ESG, stakeholder engagement and project finance, including for critical mineral and rare earth projects.
• Tiber Creek Group: Washington, D.C.-based strategic advisory firm focused on mining, critical minerals and energy policy. Most directly comparable to GreenMet given its similar mix of federal engagement, capital formation and mining-sector advisory for early- and mid-stage developers.
• Benchmark Mineral Intelligence: Independent intelligence and advisory firm covering the lithium-ion battery and critical materials supply chain. Comparable to GreenMet in its focus on connecting upstream mineral developers with downstream strategic and government stakeholders across the EV and energy storage value chain.
• Adamas Intelligence: Research and advisory firm specializing in critical minerals, rare earths and battery materials markets. Overlap with GreenMet in serving mining companies, governments and strategic investors evaluating critical mineral supply chain investments and policy support.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/greenmetusa
• LinkedInlinkedin.com/company/greenmet

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries2 records

Funding overview

Funding rounds2 records

Investors

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

M&A

Investments

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

Frequently asked questions about GreenMet