Deep Sea Mining
Headline findings

Deep-sea mining fails its own financial test

Koinon Consulting stress-tested the commercial, fiscal and public-benefit case for mining the deep seabed. There are three findings across ten thousand simulations.

Read Discussion Paper The three findings

Three findings

Each finding is a self-contained briefing — five minutes on a phone, with the full workings underneath.

Finding 1 · The Market Case

Not investible as a pure-profit business

−$5bn
median value today of a project promising $366bn of revenue, across 10,000 simulations

The proponent's 27% return collapses under megaproject cost overruns, operational risk and an uninsurable frontier. The commercial case doesn't clear on its own terms.

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Finding 2 · The Net Treasury Effect

Governments lose more than they gain

−$1.95bn
annual tax loss to land-based producers at peak production, against +$1.12bn of ISA income

Seabed supply depresses the prices of cobalt, nickel, copper and manganese mined in dozens of countries — destroying more mining tax revenue than the seabed regime collects.

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Finding 3 · Sponsor State Outcomes

No corporate income tax

48% of cases
the public-benefit test

Sponsor state profit-based revenues are more fragile than ISA royalties, arrive later, and are worth less.

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the full Discussion Paper

The complete financial analysis — methodology, models and sources — publishes here on launch day. Documentation and models are collected in the DSM library.

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