Context: tungsten headlines report APT (ammonium paratungstate) prices at levels well above history. Short answer: APT is an intermediate chemical. Its price is a useful signal about raw-material pressure, but it is not the price of a carbide insert or an edge, and it is quoted in units that are easy to misread.
What published sources say
The quotes are dated and sourced, which is what makes them usable.
- Fastmarkets, June 29, 2026: its APT 88.5% WO3 min, FOB main ports China assessment was $2,600 to $3,250 per mtu WO3 on June 24, up about 631% from $390 to $410 per mtu on June 25, 2025. It also reports that domestic Chinese APT prices and export prices were diverging.
- USGS Mineral Commodity Summaries 2026: reports that APT prices at Rotterdam increased from $331 to $675 per metric ton unit during 2025 after China implemented export controls in February 2025, and that about 60% of U.S. tungsten consumption goes into cemented carbide parts.
- Unit note (USGS): a metric ton unit (mtu) of tungsten trioxide contains 7.93 kilograms of tungsten.
What an APT price tells you
It tells you the direction of cost pressure, and direction is enough for planning.
- The direction of cost pressure on tungsten carbide powder. Powder makers, not edge buyers, feel it first.
- Which market is quoted. Export and China-domestic prices were described as moving apart, so two numbers can both be “the APT price”.
- That supply access, not only cost, is part of the story, according to Fastmarkets.
What it does not tell you
| Tempting assumption | Why it fails |
|---|---|
| “APT up 20%, so the edge is up 20%” | An edge also contains steel, brazing, labour, packaging and freight. Carbide is only part of the cost. |
| “Price per mtu equals price per kilogram” | Units differ; an mtu is a unit of WO3 content, not a kilogram of carbide. |
| “A record today means my quote must change today” | Suppliers hold stock and contracts bought earlier, so timing varies. |
How to use it
Ask suppliers whether their quote includes a metals clause and what index it follows. Keep a dated copy of the benchmark when you accept a quote. Do not convert APT quotes into an edge price on your own.
Boundary: the figures are dated June 2026 and may have moved since. I could not verify a more recent price in a free public source, so I do not state a current level.
Sources and further reading. External references are dated; where a figure is quoted, the link shows where it came from.
Fastmarkets: Tungsten markets fragmenting as domestic Chinese APT market diverges from exports (2026-06-29) ↗U.S. Geological Survey: Mineral Commodity Summaries 2026: Tungsten (2026) ↗Why Carbide Prices Rise: Raw Material and Demand Drivers for Wear Parts Buyers ↗Planning Procurement Against Carbide Price Volatility ↗Tungsten carbide inserts for snow plow edges ↗ISF 10+2 Filing for Ocean Imports: Who Files, What Data, What Deadlines ↗Does Sintering Change Country of Origin? Substantial Transformation in Plain English ↗Marine Cargo Insurance for a Container of Edges: What ‘All Risks’ Does and Does Not Cover ↗
