The trade of mercury is dictated by the , a global treaty designed to protect human health and the environment. Under this treaty:

Used in the production of chlorine and caustic soda, though many plants are now phasing this out for cleaner membrane technology.

The market for mercury is a shrinking one. As global policy shifts toward "mercury-free" alternatives, the trade has evolved from a standard chemical transaction into a highly specialized logistics challenge focused more on containment and responsible disposal than on high-volume commerce.

Historically, the primary market for mercury has been industrial. It remains a critical component in:

Today, the most significant "buy and sell" activity involving mercury isn't in new mining, but in . Specialized waste management companies "buy" (or are paid to take) mercury-containing waste—like old dental amalgam or industrial sludge—and process it to reclaim the mercury. This reclaimed mercury is then either sold for permitted industrial use or sequestered in long-term storage to keep it out of the global supply chain. Conclusion

Small amounts are still used in specialized switches, relays, and medical devices, though digital alternatives have largely taken over the consumer market. Regulatory Constraints

Many countries, including the U.S. and those in the EU, have enacted strict bans on the export of elemental mercury to prevent it from being used in unregulated mining operations abroad.