Only six of the top 20 producers are primary silver miners. The polymetallic ore deposits from which silver are recovered account for more than two-thirds of the world's silver resources.
Summer is the season for drilling, and with the uptick in the precious metals market since 2016, companies are finally able to have the budgets to properly explore their prospects, says Brien Lundin, editor of Gold Newsletter.
Experts and mining companies fear some of the modifications that go in effect in November, will result in hefty taxes, higher research costs and decrease interest from foreign investors.
Should the spinoff happen, AngloGold would be the latest miner to reduce exposure to South Africa, where political instability, controversial new mining rules and a stronger rand have made it less attractive to operate.
The country's Reserve Bank has ordered platinum and chrome miners to surrender 80 percent of their export earnings to the central bank as the country struggles to contain a crippling dollar note shortage.