The United States Geological Survey Mineral Commodity Summaries for 2021 reports that “almost every country in the world has salt deposits or solar evaporation operations of various sizes”.

Eight countries (China, the United States, India, Germany, Australia, Canada, Chile, and Mexico) each produced at least 9 million tons of salt in calendar year 2020. The accompanying pie chart illustrates their relative importance. Much of the salt produced in India is solar salt made using artisanal methods.

Unlike most other mineral commodities, the natural salt resource is enormous. Ocean water can provide an essentially unlimited amount of salt. The amount of salt held in subsurface rock units is enough to easily supply the world for centuries.