Supply Chain

Tungsten Supply Chain: From Mine to Market

China dominates tungsten more completely than almost any other metal: 82% of mine production, ~90% of APT processing, and a dominant share of cemented carbide production. Tungsten ores (wolframite and scheelite) are processed into APT through a multi-step chemical refining process, then reduced to tungsten powder and carburized to tungsten carbide for cutting tool applications. The cemented carbide industry (~55% of tungsten demand) is dominated by Sandvik, Kennametal, Ceratizit, and Chinese producers. Defense applications (tungsten heavy alloy for kinetic energy penetrators) represent a smaller but strategically critical demand segment. Western tungsten production is minimal: Austrials Mittersill mine (WBH) is the only significant European operation, and North America has no active tungsten mines. Almontys Sangdong restart in South Korea is the most advanced project to diversify supply.

Production Geography

Global Tungsten production is led by China, which accounts for approximately 82% of world output, followed by Vietnam. The full list of major producing nations includes China, Vietnam, Russia, Bolivia, Austria. This geographic concentration means that disruptions in key producing regions can have outsized impacts on global supply and pricing.

Extraction Methods

Tungsten is extracted using the following primary methods:

• Underground mining
• Open-pit mining

Processing and Intermediate Products

Tungsten is primarily sourced from Wolframite ((Fe,Mn)WO4), Scheelite (CaWO4). After extraction, the raw material undergoes multiple processing steps including beneficiation, chemical treatment, and refining to reach the purity levels required by downstream industries. Typical ore grades range from 0.3-1.5% WO3.

Key Supply Chain Participants

The Tungsten supply chain involves these major companies:

Supply Chain Vulnerabilities

Key vulnerabilities in the Tungsten supply chain include concentration of 82% of production in China, limited processing capacity diversification, and long lead times for new mining projects. The high supply risk rating reflects the severity of these concentration risks and the difficulty of rapidly establishing alternative supply sources.