For more context, the first part of my investigation looks at the web of companies connected to TMC—including ties to Nautilus Minerals and Deep Sea Mining Finance—and the challenges TMC still faces in its deep-sea mining quest, even with political support.
news.mongabay.com/custom-story...

Beyond TMC, firms like Impossible Metals and American Metal are also using the national security frame, emphasizing U.S. economic resilience, military readiness, and energy security.

An analysis of TMC's 130+ press releases conducted by @mongabay.com @ocean-elly.bsky.social and @pulitzercenter.bsky.social showed a steep rise in terms like “sustainability” and “clean energy” in 2019‑2020—but by 2024, language around “defense”, “security”, and “China” eclipsed green messaging.

@mongabay.com has also revealed that key figures behind TMC—including former Nautilus execs—are now leading a new Texas-based venture: American Metal. Formed in 2025, it’s promising “sustainable” deep-sea mining for the U.S. market. @pulitzercenter.bsky.social news.mongabay.com/custom-story...

One of those ties: DSMF, which holds a stake in TMC, ran a disputed mining operation off PNG in 2024 that caught regulators off guard. Now PNG’s prime minister says the gov’t is investigating. @mongabay.com @pulitzercenter.bsky.social @john-cannon.bsky.social news.mongabay.com/2025/06/png-...

Thanks for noting this error! The article has been corrected.

Not surprising!