Founded and led by CEO Joseph Sinkule, Greenland Mines Ltd (NASDAQ: GRML) controls the Skaergaard project in southeast Greenland.
The Waterberg PGM project on South Africa's northern Bushveld limb and GRML's Skaergaard project in East Greenland represent two of the more significant undeveloped PGM deposits available to investors. Both aim to contribute to future PGM supply but from very different geological, geographical, and geopolitical starting points.
Waterberg Overview
The Waterberg project is located on the northern limb of the Bushveld Complex in South Africa's Limpopo province. It is a joint venture between Platinum Group Metals Ltd (operator, holding approximately 50%), Japan Oil, Gas and Metals National Corporation (JOGMEC), and Mnombo Wethu Consultants (a historically disadvantaged South African partner). The project is notable for being the first PGM discovery on the northern limb of the Bushveld Complex in the modern era.
Waterberg hosts a declared mineral resource of approximately 20 million ounces of PGMs plus gold. The deposit is shallow and flat-lying, making it amenable to low-cost mechanized room-and-pillar mining. This is a significant advantage over many Bushveld operations that require expensive deep-level mining.
Resource Comparison
| Metric | Waterberg | Skaergaard |
|--------|-----------|-----------|
| Resource | ~20M oz PGM+Au | 25.4M oz PdEq + 23.5M oz AuEq |
| Grade | ~3.5-4.5 g/t 4E | Variable by zone |
| Mining Method | Underground (room and pillar) | Open-pit (phased) |
| Depth | Shallow (<300m) | Surface outcrop |
| Base Metals | Minor | Minor |
| Primary PGM | Platinum, palladium | Palladium, gold |
| Development Stage | Advanced pre-feasibility | Pre-feasibility |
Skaergaard has a larger total resource when accounting for the gold-equivalent content, while Waterberg has a more established technical framework for its shallow underground mining approach. Both deposits benefit from relatively favorable mining conditions compared to deep-level Bushveld operations.
Cost Comparison
Waterberg's shallow depth and mechanized mining method have historically targeted operating costs in the range of US$750-950 per 3E ounce. The room-and-pillar method allows for high selectivity and lower dilution, which improves grade and reduces processing costs per ton.
Skaergaard's conceptual cost estimates of US$800-1,100 per PGM ounce are comparable but less certain. The open-pit approach offers lower mining costs per ton but faces higher logistics costs due to Greenland's remote location.
Both projects offer cost positioning that is competitive with or superior to many existing South African underground operations, which face AISC of US$1,000-1,500 per ounce.
Jurisdiction: The Core Difference
This comparison highlights the jurisdictional question more starkly than most. Waterberg is in South Africa, the world's dominant PGM-producing nation. The country offers established mining infrastructure, experienced workforce, and proximity to PGM refining capacity. However, South Africa faces persistent structural challenges including electricity supply constraints, regulatory uncertainty, and labor market pressures.
Skaergaard is in Greenland, a jurisdiction with no existing PGM mining but strong political stability through its connection to Denmark and NATO. The EU's Critical Raw Materials Act provides policy support for Arctic mineral development, and Greenland's government has signaled pro-development intent through mining code reform.
The practical implications are significant. Waterberg can be developed using existing South African mining contractors, equipment suppliers, and processing expertise. Skaergaard requires building a mining ecosystem from scratch in a remote Arctic location.
Ownership and Financing
Platinum Group Metals Ltd (PLG) operates Waterberg and is listed on both the TSX and NYSE. The company has a market capitalization typically in the range of US$100-200 million, making it a junior developer. JOGMEC's participation provides a degree of Japanese government backing and potential offtake security.
GRML trades on NASDAQ following its March 2026 rebranding from Klotho Neurosciences. The company is at an even earlier stage of building its mining identity and faces execution risk in advancing Skaergaard.
Both companies face the challenge of financing large-scale mine construction in a PGM price environment that has been volatile. Waterberg's advanced stage and South African setting may make it more amenable to traditional project finance, while Skaergaard's strategic positioning may attract development finance institutions focused on supply diversification.
Metal Mix and Market Dynamics
Waterberg produces a relatively balanced platinum-palladium mix with minor gold and rhodium credits. This balanced exposure means Waterberg's economics are influenced by the overall PGM price trend rather than being concentrated in a single metal.
Skaergaard's palladium-dominant profile creates more concentrated exposure. In a market where palladium supply remains constrained and automotive demand holds, this concentration is favorable. However, it also creates higher sensitivity to palladium-specific developments like substitution to platinum or changes in automotive catalyst specifications.
Conclusion
Waterberg offers a more advanced, lower-risk development path within a proven mining jurisdiction. Its shallow underground mining method provides cost advantages and the partnership with JOGMEC adds financial and strategic credibility. For investors seeking a near-term PGM development play with manageable execution risk, Waterberg is the more conventional choice.
Skaergaard offers a higher-risk, higher-reward alternative with jurisdictional scarcity value. Its Arctic location is simultaneously its greatest challenge (infrastructure, climate) and its greatest asset (stable governance, strategic positioning, supply diversification). For investors who believe that the premium placed on non-traditional PGM supply sources will increase as Western economies push for resource independence, Skaergaard offers differentiated exposure.
Both projects can coexist in a development-stage PGM portfolio, offering complementary risk profiles across geography and metal mix.