Skip to content
CRITICAL MINERALS DATA
Menu
p.69Cs
Nuclear, Catalysts & Specialty Materials·Not Ranked

Cesium - Production, Reserves & Supply Concentration

An alkali metal used in specialised drilling fluids and atomic timekeeping.USGS describes cesium supply through pollucite deposits, industrial uses and aggregate reserve estimates. Country production figures are unavailable in this release.

2025 World OutputSalient Onlymetric tons
5Y Output Growth-2020 to 2025e
#1 Producing NationUnranked- world share
Top-3 Share / HHI-HHI: -
World ReservesNot TabulatedUSGS Reserves
U.S. Import Reliance100%2025 USGS Salient
Cs
FIG. 69 · Nuclear & Specialty

Cesium Global Production & Country Share

Measure: Salient Statistics (metric tons)

USGS withholds or does not tabulate a global numeric production time series for Cesium due to proprietary producer concentration. Inspect the qualitative supply-chain scope and U.S. import reliance tables below.
Source: USGS Mineral Commodity Summaries (2022-2026) · Unit: metric tons U.S. Net Import Reliance: 100%
TABLE 3 · UNITED STATES SALIENT STATISTICS

U.S. Supply, Consumption & Net Import Reliance (2021-2025)

Salient MeasureUnit20212022202320242025e
Cesium: U.S. Net Import Reliance % of consumption----100%
REFERENCE Q&A

Frequently Asked Questions - Cesium

What production statistics are available for cesium?

USGS describes cesium supply through pollucite deposits, industrial uses and aggregate reserve estimates. Country production figures are unavailable in this release.

Does USGS publish a country reserve ranking for cesium?

The USGS chapter describes the available reserve information. USGS describes cesium supply through pollucite deposits, industrial uses and aggregate reserve estimates. Country production figures are unavailable in this release.

What is US net import reliance and import sourcing for cesium?

In 2025, US net import reliance was reported at 100% (The United States was 100% net import reliant for its cesium needs).

How is cesium classified on the US Critical Minerals List and what are its primary uses?

Status: Listed on 2025 US List (2022 & 2025 lists). Primary applications cited in USGS summaries include: Atomic clocks for GPS and telecommunications syncing, high-density formate drilling fluids, and specialty optics. Pollucite is the principal cesium-bearing mineral. Because global pollucite mining and cesium chemical refining are highly concentrated among a few operations, USGS publishes no official country production table.