Rhodium · Origin deep dive

No exchange exists; metal sits in Zurich and London specialist vaults, quoted bilaterally by a handful of refiner-dealers.

99.9% rhodium powder and sponge in small bottles, with Johnson Matthey and Heraeus base prices as reference marks.

Small airfreighted parcels between refiners, dealers and fabricators; illiquidity means quotes gap on single-lot interest.

Autocatalyst fabricators overwhelmingly, plus glass-fiber bushing makers and chemical catalyst users.

No real seasonality; pricing lurches with auto-sector contract buying and sporadic speculative hoarding in a tiny market.

Extreme illiquidity amplifies everything — small demand shifts have produced historic spikes toward $30,000 an ounce.

Delivered to Chinese catalyst-coating plants through licensed importers serving gasoline-vehicle emission programs.

High-purity powder for three-way catalyst NOx control, where rhodium has no full substitute at current standards.

Airfreighted small lots under term contracts; buyers hold minimal inventory given the price volatility.

Catalyst coaters and Chinese OEMs meeting tightening China 6b-and-beyond NOx limits on gasoline fleets.

Buying follows vehicle production ramps into year-end and new emission-standard implementation dates.

Emission-rule tightening pulls demand up while BEV growth cuts it; thrifting programs respond to every price spike.

Refined at the Rustenburg-area precious metal refineries and airfreighted from Johannesburg, roughly 80% of world supply.

UG2 reef ores are rhodium-rich, making South African producers the price-setting source for the metal.

Producer term contracts deliver powder to catalyst fabricators; spot availability is a thin residual.

Autocatalyst majors on long-term contracts, with bullion dealers taking marginal ounces.

Supply-risk windows cluster around mid-year wage talks, load-shedding peaks and smelter maintenance outages.

Any Eskom or smelter outage hits four-fifths of world supply; basket-driven shaft closures cut rhodium as collateral damage.

Small co-product stream from Norilsk ores, refined domestically and marketed mostly toward Asian buyers.

Fine rhodium powder, but Russian refiner accreditation losses limit acceptance in Western good-delivery channels.

Bilateral small-lot sales into China and non-Western dealers rather than the Zurich-London dealer network.

Chinese catalyst and glass fabricators plus intermediaries comfortable with Russian provenance.

Volumes ride Nornickel's mining schedule; the stream is too small for seasonal patterns to matter.

Sanctions optics and provenance screening keep Russian rhodium at a discount despite the market's overall tightness.

Recovered from spent autocatalysts at Umicore Hoboken, Heraeus, BASF and Johnson Matthey refining circuits.

Refined back to 99.9% powder; per-converter rhodium content is small but high-value, rewarding careful assay.

Converter scrap is sampled and toll-refined with long processing lead times, returning metal at payables under dealer quotes.

Refiners recycle units straight into catalyst-maker supply chains, offsetting primary South African dependence.

Follows vehicle scrappage cycles and price-triggered de-hoarding of converter inventories by collectors.

Scrappage rates, refinery bottlenecks and price crashes that idle collection determine the secondary flow.