How to Invest in Harena Rare Earths PLC

By Patrick Davis

Dec 15, 2025

4 min read

Harena Rare Earths PLC (OTCQB: CRMNF) (LSE: HREE) offers investors access to a large-scale ionic-clay rare earth asset at a time when the US is intensifying efforts to secure diversified magnet-metal supply. Learn how to invest.

#🚀 Why Invest in Harena Rare Earths?

Harena Rare Earths PLC (OTCQB: CRMNF) (LSE: HREE) is a London-based critical minerals company developing the Ampasindava Ionic Clay Rare Earth Project in Madagascar. Harena’s edge is twofold. First, its project is outside China, a timely edge as the US and its allies accelerate efforts to reduce reliance on Chinese rare earths, while China continues to dominate global supply. Second, its clay-hosted rare earth deposits contain loosely bonded minerals that can be more easily leached, a setup that may enable cheaper, faster, and less capital-intensive extraction than hard-rock systems.

Because Harena Rare Earths owns 100% of the Ampasindava asset, it has full flexibility to shape future offtake, funding, and strategic partnerships, particularly with US-linked groups seeking reliable, non-Chinese rare earth supply. This combination of scale, geology, and jurisdiction positions Harena as one of the development stories investors may watch as new magnet-metal supply chains take shape.

#🛠 Step-by-Step: How to Buy CRMNF Stock

Step 1: Choose a Brokerage Account

CRMNF is listed on the OTCQB Venture Market, a US over-the-counter (OTC) market tier operated by OTC Markets Group. US investors can buy CRMNF directly on the OTCQB in US dollars. Since CRMNF trades on a US OTC market, most major brokers give you straightforward access. Platforms like Interactive Brokers, Charles Schwab, Fidelity, and similar firms typically support trading CRMNF without extra steps or cross-border setups.

If you already have an account with a brokerage, skip to Step 2. If not, you’ll need to open one to purchase CRMNF stock.

Popular brokerage platforms include:

Some platforms charge fees, while others offer commission-free trading. Some brokerages also allow fractional share purchases. Fractional shares may not be available for CRMNF stock due to its small-cap status. You may need to purchase whole shares only.

Step 2: Fund Your Account

Once your brokerage account is set up, you need to deposit funds. Most brokerages allow funding via:

  • Bank transfer (ACH, wire transfer)

  • Debit/credit card (if applicable)

  • Transfers from another brokerage

Step 3: Search for CRMNF on Your Brokerage Platform

Use the stock ticker: CRMNF (or HREE in the UK) to locate Harena Rare Earths stock on your chosen brokerage platform.

Step 4: Decide How Much to Invest

Determine how much you want to invest based on your financial goals and risk tolerance. Many investors use dollar-cost averaging (DCA) to reduce market timing risk.

Step 5: Place Your Order

There are different order types available:

  • Market Order: Buy CRMNF at the current market price.

  • Limit Order: Set a specific price at which you want to purchase CRMNF.

  • Stop-Loss Order: Protect against potential losses by setting a sell trigger.

Step 6: Review & Confirm Your Trade

Double-check your order details before submitting. Once confirmed, your broker will execute the trade, and you’ll officially own shares of Harena Rare Earths.

#💡 Why Invest in CRMNF Now?

With a 100% interest in a JORC-compliant 699Mt mineral resource, Harena Rare Earths (OTCQB: CRMNF) (LSE: HREE) aims to support long-term demand for magnet metals across the energy-transition, defence, and advanced-manufacturing sectors. Harena is currently undertaking its pre-feasibility study and maintains a commitment to low-impact extraction methods associated with clay-hosted rare earth systems.

699Mt JORC Resource

Harena offers exposure to a large, independently verified 699Mt ionic-clay rare earth resource, a geological profile that is uncommon outside China. The size and classification help reduce early-stage uncertainty and position the project closer to advanced development than greenfield exploration.

Premium Magnet-Metal Basket

The Ampasindava resource contains meaningful concentrations of dysprosium, terbium, neodymium, and praseodymium, the high-value metals essential for EV drivetrains, defence systems, wind turbines, and robotics. This mix aligns Harena’s operation with segments of the rare earth market where demand has shown sustained growth.

Low-Capex, Fast-Track Development Potential

Clay-rich rare earth element (REE) systems can enable simpler near-surface extraction and potentially lower processing complexity compared with hard-rock deposits, which may also support lower-impact operating footprints that align better with modern ESG expectations. Management has indicated that, subject to licensing and development progress, the project could target initial concentrate production within 12 to 18 months, reflecting the relative simplicity associated with this deposit type.

Strategic US Market Alignment

With the US actively working to diversify rare earth supply chains, Harena’s non-Chinese asset is well-positioned. Its OTCQB listing, dialogue with US agencies, and offtake engagement support the company’s intent to become a relevant future supplier to the US market.

Full Ownership and Institutional Backing

The company holds 100% of the Ampasindava Project, giving it full control over development and future partnerships. Support from established institutional investors and a non-binding offtake letter with United Rare Earths add external validation of Ampasindava’s potential.

Clear Milestone Path

Harena’s near-term roadmap includes an upcoming pre-feasibility study, mining-license process, feasibility work expected in 2026, and continued US engagement. Progress across these steps may help investors track how project advancement aligns with the company’s stated strategy and reported resource base.

#📚 Additional Resources for Investors

✅ Latest Investor Presentation
✅ Regulatory Filings & Financial Reports
✅ Company News & Press Releases
✅ Harena Rare Earths Stock Report

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Battery Metals Critical Minerals Metals and Mining rare earths Materials

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