Cs

Cesium

Projects

Major Cesium Projects Worldwide

The development pipeline for Cesium projects spans exploration through production across multiple jurisdictions. We track 3 key projects that will shape the future supply landscape for this specialty metal.

Current Production

40

tonnes

Top Producer

Canada

82% share

Projects Tracked

3

Reserves

190,000 tonnes (Cs2O)

Cesium Project Pipeline

The following projects represent the most significant Cesium operations and development-stage assets worldwide:

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

Government Support and Strategic Initiatives

Recognizing the strategic importance of Cesium, governments in major consuming nations have launched programs to support project development. These include direct financing, loan guarantees, streamlined permitting, and bilateral resource partnerships. As a USGS-listed critical mineral, Cesium projects are eligible for various U.S. government support mechanisms including the Defense Production Act Title III program. EU Critical Raw Materials Act provisions enable fast-track permitting and financing support for Cesium projects within the EU and partner nations.

Key Industry Developments

Recent developments affecting the Cesium project landscape:

2019

Chinas Sinomine Resource Group acquired the Tanco mine from Cabot Corporation, giving China effective control over the worlds primary cesium source

2020

Sinomine also acquired Bikita Minerals in Zimbabwe, consolidating control of two of three known pollucite deposits under Chinese ownership

2023

US and Canadian officials raised national security concerns about Chinese control of the Western worlds primary cesium supply from the Tanco mine

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