That’s because in addition to a long list of civilian uses ranging from flame retardants, lead-acid batteries, and plastics, to ceramics, consumer electronics and safety clothing, antimony has a dizzying array of military applications, from armor-piercing bullets and tracer ammo to night vision goggles, laser sights, communications equipment and even components in nuclear weapons.
China has the largest known reserves of the tough, heat and corrosion-resistant material in the world, boasting 640,000 metric tons in 2023. Russia is second, with 350,000 tons, and Bolivia is third, with 310,000 tons. US allies Australia, Turkiye, Canada are also in the top ten, with their reserves at 140,000, 99,000 and 78,000 tons, respectively. US reserves stand at 60,000 tons.