By Salini Krishnan
The narrative surrounding the global nickel market in recent years has been dominated by a single, monolithic concept: the "wall of Indonesian nickel." This tidal wave of supply, primarily in the form of Nickel Pig Iron (NPI) and more recently Mixed Hydroxide Precipitate (MHP), has spent much of the early 2020s depressing prices and forcing high-cost operators in Australia and North America to mothball assets.
However, as we move through the second quarter of 2026, the landscape is shifting. The Indonesian government, which now controls more than 50% of the world’s nickel supply, has moved from a strategy of sheer volume to one of value preservation and price floor management. With the implementation of the Ministry of Energy and Mineral Resources (ESDM) Decree No. 144, the days of "cheap" Indonesian ore are meeting a structured, regulatory end.
For operators, investors, and policymakers, the question is no longer just about how much nickel Indonesia can produce, but at what price they are willing to sell it, and whether the widely feared surplus is actually a mirage.
The HPM Overhaul: Understanding Decree No. 144
On April 15, 2026, the Indonesian government enacted a significant revision to its Domestic Mineral Benchmark Price, known as Harga Patokan Mineral (HPM). This isn't merely a minor adjustment; it is a fundamental restructuring of the cost base for the world’s largest nickel hub.
The primary change involves the correction factor (CF) for nickel ore. For the standard 1.6% grade nickel ore, the correction factor has been raised from 17% to 30%. In practical terms, this increases the floor price that smelters must pay to miners, effectively squeezing the margins of NPI and MHP producers who have long benefited from low-cost domestic feedstock.
Perhaps more critically, the new decree now includes associated minerals, specifically cobalt, iron, and chromium, in the pricing formula. Previously, these minerals were essentially treated as "free" byproducts for the smelters. Now, if cobalt content reaches or exceeds 0.05%, it must be accounted for in the HPM valuation.
Data Point: The Shift in Ore Economics (April 2026)
| Metric | Pre-April 15, 2026 | Post-April 15, 2026 | % Change |
|---|---|---|---|
| Correction Factor (1.6% Grade) | 17% | 30% | +76.5% |
| 1.5% Grade Ore HPM (approx.) | $26.66/wmt | $57.13/wmt | +114% |
| NPI Production Cost Increase | – | ~$500/tonne Ni | N/A |
| Cobalt/Iron/Chrome Inclusion | No | Yes (above thresholds) | N/A |
This pricing shift is already causing friction in the supply chain. Many new contracts between miners and smelters remain stuck in negotiation as parties struggle to value the variable cobalt and iron content in laterite ores. While existing contracts loaded before the mid-April deadline are being grandfathered in, the market is bracing for a higher cost floor across the board.
The Surplus Paradox: 32,000 Tonnes of Doubt
For two years, analysts have warned of a "perpetual surplus" in nickel. However, the data for 2026 presents a conflicting picture. The International Nickel Study Group (INSG) recently stunned the market by forecasting a 32,000-tonne global deficit for 2026. This marks a radical reversal from the 283,000-tonne surplus seen in 2025.
Why the discrepancy? The "surplus" narrative often fails to distinguish between Class 1 nickel (LME-deliverable) and Class 2 nickel (NPI for stainless steel). While there is an abundance of NPI, the market for battery-grade MHP and high-purity nickel sulfates remains remarkably tight. Furthermore, Indonesia’s recent supply discipline: targeting a flat-to-down ore production of roughly 250 million tons for the year: is finally starting to bite.
Conversely, some private analysts, including those at ING Group and SMM, maintain that the market remains in oversupply, with some estimates still as high as 261,000 tonnes. This "Surplus Paradox" is creating significant volatility in LME pricing as traders weigh the INSG's structural deficit against the possibility of continued "invisible" stocks in China.
Margin Squeeze: Why Smelters are Worried
The combination of higher ore floor prices and fluctuating refined nickel prices has put Indonesian smelters in a precarious position. The estimated $500 per tonne increase in NPI production costs is pushing many operators toward a total cost of roughly $15,740 per tonne of nickel. At current LME levels, margins are thinning to the point where the least efficient "RKEF" (Rotary Kiln Electric Furnace) smelters may soon face curtailments.
This is a deliberate move by Jakarta. By raising the HPM, the government is forcing the industry toward higher-value processing. It is no longer enough to just produce NPI; the state is pushing for more HPAL (High-Pressure Acid Leaching) capacity to feed the global EV battery supply chain, which offers higher premiums and strategic alignment with Western markets.
Geopolitics and the "Green Nickel" Premium
The pricing changes also arrive at a time of heightened geopolitical tension. As we detailed in our analysis of Indonesia's response to US tariff rulings, Jakarta is acutely aware of its position in the crosshairs of the US Inflation Reduction Act (IRA) and the EU’s Critical Raw Materials Act.
To qualify for Western subsidies, Indonesian nickel must prove its ESG credentials. This has led to a flurry of investment in renewable energy for smelting and more rigorous tailings management. The inclusion of cobalt in the HPM formula is part of this broader professionalization of the sector. As Chinese export controls tighten elsewhere, Indonesia is positioning itself as the indispensable, albeit more expensive, partner for the energy transition.
2026 Outlook: Base, Bull, and Bear Cases
As we look toward the remainder of 2026, the nickel market is defined by three potential paths:
1. The Base Case: Structural Consolidation
In this scenario, the INSG's deficit forecast proves largely correct as Indonesian supply discipline holds. Prices stabilize between $18,500 and $20,000/t. Higher HPM floor prices prevent a price collapse, but the surplus in NPI prevents a massive rally.
2. The Bull Case: The Battery Breakout
If EV demand in Europe and North America accelerates and HPAL ramp-ups in Indonesia face technical delays, the deficit could widen beyond 30,000 tonnes. In this case, "Green Nickel" premiums become standard, and prices could test the $22,000 level.
3. The Bear Case: The Surplus Returns
If SMM’s projections of a 260,000-tonne surplus are accurate, and Indonesian miners bypass HPM regulations through "creative" contracting, the market will remain flooded. Prices would likely languish near the $16,000/t mark, threatening the viability of even some low-cost Indonesian operations.
Final Thoughts for the Industry
The "fear" of the nickel surplus is increasingly a fear of the wrong thing. The real risk for 2026 isn't a wall of cheap nickel; it’s the transition to a high-cost, high-regulation environment where Indonesia no longer subsidizes the global stainless steel and EV industries with underpriced ore.
For mining professionals and investors, the key indicators to watch will be the implementation of the SIMBADA digital tracking system: which will enforce the HPM floor: and the monthly export data from Sulawesi. Indonesia has proven it can dominate the market through volume; now, it is proving it can control the market through policy.
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Indonesia has officially upended the nickel cost curve. With the new ESDM Decree 144 raising ore floor prices and the INSG forecasting a 32k tonne deficit, the "cheap nickel" era is under threat. Is the surplus a myth? Our latest deep dive breaks down the new pricing formula and the 2026 outlook for the world's nickel hub. #Nickel #Mining #Indonesia #EnergyTransition #ESG #CriticalMinerals