Cs

Cesium

Companies

Key Companies in the Cesium Value Chain

The Cesium industry encompasses at least 3 major companies from junior explorers and mine developers to integrated producers and downstream processors. With annual production of 40 tonnes and prices around 80,000-100,000 $/tonne (Cs formate brine), the Cesium market supports a diverse corporate ecosystem.

Annual Production

40

tonnes

Market Price

80,000-100,000

$/tonne (Cs formate brine)

Top Producer

Canada

82% share

Companies Tracked

3

Major Producers and Processors

The following companies are key participants in the Cesium supply chain:

Sinomine Resource Group

Producer 002738.SZ
China

Acquired the Tanco mine in Manitoba, Canada in 2019, securing control of one of only three significant pollucite deposits globally

Cabot Corporation (historical)

Former processor CBT
United States

Historically dominant in cesium formate drilling fluids through its Specialty Fluids division; sold cesium business to Sinomine in 2019

Avalon Advanced Materials

Developer AVL.TO
Canada

Holds cesium-rich mineral properties in Canada as part of its critical minerals portfolio

Active Operations and Development Projects

These are the key Cesium operations and development-stage projects associated with the companies above:

Tanco Mine

Sinomine Resource Group

Production (intermittent)
Country: Canada Capacity: Worlds primary pollucite source

Located at Bernic Lake, Manitoba; one of only three known economic pollucite deposits globally; now Chinese-owned following Sinomine acquisition from Cabot

Bikita Minerals

Sinomine Resource Group

Production
Country: Zimbabwe Capacity: Small pollucite output

Lithium-focused mine with pollucite as a byproduct; also acquired by Sinomine

Sinclair Caesium Project

Pioneer Resources (historical)

Exploration
Country: Australia Capacity: TBD

One of few known pollucite occurrences outside Tanco and Bikita

Corporate Strategy Trends

Major consumers of Cesium across the atomic clocks and gps systems and oil and gas drilling fluids sectors are increasingly focused on securing long-term supply agreements, investing in supply chain traceability, and supporting new production sources to reduce exposure to the 82% concentration in Canada.

Return to the Cesium hub page or browse the full Mineral Library.