Supply
Silver rarely occurs in deposits rich enough to mine alone. It is scattered through the ores of copper, lead, zinc and gold, recovered at the smelter as a bonus. That geological accident has an economic consequence that matters more than almost anything else about this market: silver's supply does not answer to silver's price.
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Byproduct share
Roughly 70%+
Host metals
Cu, Pb-Zn, Au
Primary mines
The minority
Supply elasticity
Low
Silver is geochemically promiscuous — it bonds into the mineral structures of lead, zinc, copper and gold ores rather than concentrating on its own. Deposits where silver is the main economic metal exist (famously in Mexico and Peru), but they are the exception. Most silver arrives at the refinery because someone was mining something else.
If silver doubles, a copper miner does not open a new copper pit to capture it — silver might be one or two percent of the mine's revenue. And if silver halves, that mine does not close either. Supply is therefore inelastic in both directions, which is why silver can stay in physical deficit for years without new mine supply arriving to fix it.
Three things: sustained high prices making primary silver projects financeable; higher byproduct credits improving the economics of polymetallic projects; and recycling becoming more profitable. All three respond to price with a lag measured in years, not months. Sources for this page include the U.S. Geological Survey Mineral Commodity Summaries, the Department of the Interior's 2025 final List of Critical Minerals, the Silver Institute's World Silver Survey, and the International Energy Agency's critical-minerals analysis.
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