mineral · input

Antimony Metal (Bullet Core Hardener)

Used at 6–30% concentration in lead alloys for bullet cores; increases hardness and controls deformation. US produces zero antimony domestically (Sunshine Mine, Idaho, closed 2001). 100% US import dependency on China. Prices surged ~4x in 12 months (2024-25) to $51,500/tonne; NATO ammo ramp-up for Ukraine competing with electronics demand.

6

Source countries

3

Companies

1

Goods affected

0

Claims on record

What depends on it

Goods that need this input

1 essential American goods rely on antimony metal (bullet core hardener) somewhere upstream in their supply chain.

Where it comes from

Source countries

Share of global supply, by country.

Who makes it

Supplier companies

3 companies produce antimony metal (bullet core hardener).

Hsikwangshan Twinkling Star Co., Ltd.

HQ CN25% share

State-controlled Chinese antimony miner and smelter headquartered in Lengshuijiang, Hunan; operates the Hsikwangshan mine complex — the world's largest antimony deposit, mined continuously since the 1890s; produces approximately 25% of global antimony supply; fully integrated from ore to antimony trioxide; key supplier to Chinese flame retardant, semiconductor, and ammunition industries

Mandalay Resources Corp.

HQ CA2% share

Canadian mid-tier miner operating the Costerfield gold-antimony underground mine in Victoria, Australia; one of the few operating Western antimony producers; antimony is a by-product of gold mining at Costerfield; supplies ~2% of global antimony; also operates Björkdal gold mine in Sweden

Perpetua Resources Corp.

HQ US0% share

US-listed mining company developing the Stibnite Gold-Antimony Project in Valley County, Idaho — the only permitted US antimony development project; received direct US Department of Defense funding under the Defense Production Act; EIS record of decision issued 2023; projected first production 2028; would supply approximately 35% of annual US antimony demand once fully operational