Rhodium markets experienced a dramatic repricing in the final week of May, with the ultra-rare platinum-group metal shedding more than 10% of its value in just ten trading sessions. The sell-off accelerated on May 27 when spot prices briefly touched $9,050/oz before recovering to the $9,500–9,600 range by May 28. The catalyst: a rapid shift in market expectations from a structural supply deficit to a potential small surplus — a regime change that would mark the first annual rhodium surplus since 2020.
"The market has gone from worrying about where the next ounce of rhodium will come from to worrying about who will absorb excess supply," said a London-based PGMs analyst tracking the daily price action. "That psychological pivot is what drives these violent moves in a market as thin and concentrated as rhodium."
SMM: Demand Forecast Revised Down 6%
Shanghai Metals Market (SMM), China's leading non-ferrous metals research house, published a revised 2026 rhodium demand forecast projecting a 6% year-over-year decline in global rhodium consumption. The downward revision is driven primarily by three factors: the accelerating phase-out of internal combustion engine (ICE) vehicles in Europe and China, increased rhodium thrifting by autocatalyst manufacturers, and softer industrial demand from the glass and chemical sectors.
SMM analysts noted that global ICE vehicle production — the primary end-use for rhodium, which accounts for roughly 85% of total demand — is declining faster than previously modeled. European ICE registrations fell 12% year-over-year in Q1 2026, while China's ICE market contracted 8%, as battery-electric and plug-in hybrid vehicles continue to capture market share. Each million ICE vehicles removed from the production pipeline eliminates approximately 30,000–35,000 ounces of rhodium demand at current loading rates.
"Demand-side headwinds are intensifying at precisely the wrong moment for rhodium bulls," the SMM report stated. "The combination of secular ICE decline, ongoing thrifting, and moderating industrial offtake creates a demand profile that may be structurally lower than the supply base, even with constrained mine output."
Automotive catalyst manufacturers have made significant progress in reducing rhodium loadings per catalyst over the past two years. Average rhodium content per three-way catalyst has been reduced by 15–20% from 2023 levels through improved washcoat formulations and more precise precious metal dispersion. While thrifting is partly a response to rhodium's extreme price volatility, it also reflects a structural technological shift that persists even as prices correct. Every gram of rhodium saved compounds into reduced annual demand of approximately 25,000–35,000 oz per year globally.
Heraeus: "Could Transition from Deficit to Surplus"
Heraeus Precious Metals, one of the world's largest precious metals refiners and a bellwether for PGMs market balance, published its 2026 precious metals forecast with a notably cautious outlook for rhodium. The report explicitly warns that rhodium "could transition from deficit to surplus" in 2026, driven by a combination of moderating autocatalyst demand and steady — if unspectacular — mine supply growth from South Africa's Bushveld Complex.
Heraeus estimates the 2025 rhodium market registered a deficit of approximately 25,000–30,000 ounces, down from 85,000 ounces in 2024, as the structural balance steadily eroded. For 2026, the refiner projects a market that is "broadly balanced to marginally oversupplied," with a potential surplus of 5,000–15,000 ounces. While a small surplus by tonnage terms, the shift from deficit represents a critical psychological threshold for a market accustomed to physical tightness.
"The key variable is the pace of ICE production decline and the extent of additional thrifting," the Heraeus report noted. "If European ICE registrations fall more than 15% year-over-year in 2026, the surplus could reach 25,000–30,000 ounces — a level that would put significant downward pressure on prices toward the $7,000–8,000/oz support zone."
ICE Production in Structural Decline
The most powerful headwind facing rhodium demand is the accelerating transition away from internal combustion engines. While hybrid vehicles still require catalytic systems — and indeed often require more complex systems — pure BEVs use zero PGM loadings. The European Union's effective ban on new ICE vehicle sales by 2035, coupled with China's aggressive NEV mandate targeting 50% NEV penetration by 2028, creates a structural downward trajectory for rhodium demand that intensifies each year.
Global ICE vehicle production is projected to fall from approximately 68 million units in 2025 to 61 million units in 2026, a decline of roughly 10% that directly translates into reduced rhodium consumption. While the pace of decline may moderate in some regions due to hybrid adoption, the directional trend is clear and irreversible.
Price Implications and Support Levels
The rapid May sell-off has brought rhodium to within striking distance of key technical support levels. The $8,500–9,000 zone represents the 50% retracement of the rally from the 2024 lows near $4,500 to the 2025 highs above $11,000. A break below $8,500 would open the path toward $7,000–7,500, which analysts identify as the next major support area based on marginal production costs for South African miners.
"Rhodium is fundamentally a different metal than gold or silver — it has almost no investment demand, no central bank buying, and no jewelry offtake to absorb excess supply," said the PGMs analyst. "When autocatalyst demand falters, the price has to find a level that physically equilibrates the market. That can mean very sharp corrections in a thinly traded market. We have seen this movie before — most recently in 2020 when rhodium collapsed from $8,000 to $1,000 before rebounding."
However, supply-side constraints remain real. South Africa's structural under-investment in mining, persistent electricity shortages, and labor inflation limit the industry's ability to respond to any price signal with increased output. Even at $9,000/oz, the incentive for new mine supply is constrained by the 12–15 year lead times required to bring new PGM capacity online in the Bushveld Complex. The supply base of approximately 16,000–18,000 kg per year from South African mines is unlikely to expand materially regardless of price.
"The surplus we are discussing is measured in thousands of ounces, not tens of thousands," the Heraeus report concluded. "This is not a structural oversupply situation — it is a temporary demand-demand imbalance that could reverse quickly if ICE attrition moderates or if industrial demand surprises to the upside. Rhodium remains a market where small shifts in either supply or demand produce outsized price moves, and that volatility is not going away."