Video Archives

onFebruary 20, 2026

Testing the Eureka III Conveyor System | Full-Scale Prototyping at Impossible Metals

Key points Jason Gillham, CTO and co-founder of Impossible Metals, presents full-scale component testing for Eureka III, the company’s production-size collection system. Unlike Eureka II, which validated the robotic arms and buoyancy system, Eureka III requires a redesigned conveyor…

onFebruary 17, 2026

Carbon Sequestration – What does the data tell us?

Key points Less than 4% of the carbon sequestered in the ocean is stored on the seafloor, with most held in the water column, according to Dr. Michael Clarke, TMC’s Environmental Manager. TMC says there is no known pathway for carbon disturbed at 4,000 meters to reach the surface and…

onFebruary 12, 2026

Green Minerals 2H 2025 webcast

Key points Green Minerals reported a second-half 2025 loss of about $2 million, roughly 80% lower than a year earlier, and cut full-year spending about 75% to around $4 million. A Norwegian minority government has blocked the first deep-sea mining licensing round, a delay the company says…

onFebruary 6, 2026

Innovation at Depth – Make it Float

Key points Buoyancy modules cut the collector vehicle’s effective weight from about 90 tons in air to roughly 15 tons on the seabed, letting it maneuver with a low footprint. Post-pilot surveys showed the collector disturbed only the top sediment layer, leaving ripples just a few…

onFebruary 5, 2026

Impossible Metals vs Conventional Dredging for Deep Sea Mining

Key points Impossible Metals compares its autonomous robotic harvesting of polymetallic nodules to conventional dredging methods used by competing deep sea mining operations. The company positions its selective, robotic approach as reducing seabed disturbance relative to broad-area dredging.…

onFebruary 2, 2026

Innovation at Depth – Collect Nodules, Not Mud: The Coanda Effect

Key points TMC’s Allseas-designed collector uses Coanda nozzles, a concept dating to the 1970s, that generate lift through curved flow to pick up nodules without digging or dredging the seabed. The system targets two impact zones: the benthic plume at the seafloor and the mid-water…

onJanuary 20, 2026

Webinar: Critical and Strategic Minerals; a National Priority

Key points Travis McLing, chief geologist at Idaho National Laboratory, says China controls 67% of global mining, about 90% of rare earth oxide and metal production, and 89% of high field strength magnet output. INL has begun its first pilot test for Perpetua Resources, running an antimony…

onDecember 30, 2025

Thorium Tracing

Key points A new peer-reviewed study in Nature used in-field thorium-tracing data to test claims that seafloor sediment plumes travel “thousands of kilometers,” a claim the study says was never grounded in scientific data. Thorium, a radionuclide naturally present in sediment,…

onDecember 29, 2025

Webinar: Introducing v7 of the Impossible Metals Techno Economic Model

Key points CTO/COO and co-founder Jason Gillham presents version 7 of the techno-economic model, which aligns with TMC’s NORI prefeasibility study and adopts an 8% weighted average cost of capital. At peak economics, Eureka 3 is modeled to collect 2.25 million wet tons per year at $110…

onDecember 18, 2025

Midwater Plumes – What does the data tell us?

Key points TMC’s 2022 test mining campaign found up to 98% of sediment entrained during nodule collection returns directly to the seafloor, with more than 95% settling within 1-2 kilometers of the collector vehicle. The midwater plume, released at 2,000 meters depth, dilutes to…

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