Supply Chain

Arsenic Supply Chain: From Mine to Market

Arsenic is produced almost entirely as a byproduct of copper, gold, and lead smelting, meaning its supply is driven by the economics of host metals rather than arsenic demand. China accounts for roughly 50% of global arsenic trioxide production, followed by Morocco. The refining of arsenic into semiconductor-grade material requires multiple sublimation and zone-refining steps to achieve 99.9999% purity. Most arsenic is consumed as arsenic trioxide, but the highest-value application is in gallium arsenide semiconductor substrates. Environmental and toxicity concerns heavily regulate arsenic throughout the supply chain, with strict containment requirements at every processing stage.

Production Geography

Global Arsenic production is led by China, which accounts for approximately 50% of world output, followed by Morocco. The full list of major producing nations includes China, Morocco, Russia, Belgium. This geographic concentration means that disruptions in key producing regions can have outsized impacts on global supply and pricing.

Extraction Methods

Arsenic is extracted using the following primary methods:

• Byproduct of copper and gold smelting
• Byproduct of lead refining

Processing and Intermediate Products

Arsenic is primarily sourced from Arsenopyrite (FeAsS), Orpiment (As2S3), Realgar (As4S4). 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 Byproduct - grades vary.

Key Supply Chain Participants

The Arsenic supply chain involves these major companies:

Supply Chain Vulnerabilities

Key vulnerabilities in the Arsenic supply chain include concentration of 50% of production in China, limited processing capacity diversification, and long lead times for new mining projects. Monitoring these vulnerabilities remains important for supply chain resilience planning.