Letmo

Research Reports

TMC

TMC the metals company Inc.

Short thesisAs of 2026-06-09

I do not think commercial deep-sea mining is currently economic. The permit debate gets most of the attention, but permission to mine does not answer the harder question: can anyone collect, lift, process, and sell these nodules at an acceptable cost?

Thesis at a Glance

The market treats permitting as the main obstacle. I think physical and commercial costs are the bigger wall.

Offshore oil is already more expensive than onshore production. Deep-sea mining adds disadvantages: low target concentration, solid material that must be lifted through water, and a collector that must keep moving across a vast seabed rather than extracting from one fixed well.

The Business

TMC plans to collect polymetallic nodules from the deep ocean and outsource major parts of the operating chain, including collection vessels and processing. Outsourcing may reduce fixed investment, but it also leaves little obvious moat if the economics eventually work.

Why the Market May Be Wrong

A permit is legible and politically exciting, so it becomes the story. Cost per recovered and processed tonne is less exciting, but it determines whether the story becomes a business.

The commercial timeline has repeatedly moved to the right and the regulatory path has changed. That history makes a new target date evidence of a plan, not evidence of execution.

Key Risks

Government support, strategic-minerals policy, or a permit milestone could move the stock sharply even without proving economics. Low-cost financing or a partner willing to absorb early losses could extend the timeline considerably.

What Would Prove Me Wrong

Actual commercial operations would matter. If TMC begins sustained collection, publishes credible all-in costs, and shows a path to positive unit economics, my thesis would need to change. A permit by itself is not enough.