The Metals Company

Allseas' nodule collector uses Coanda nozzles to lift nodules. Allseas cut seafloor disturbance to about 3-5 cm, from an estimated 5-15 cm.

TMC adapted the 1970s Coanda nozzle for its Allseas-built collector. It lifts nodules without digging the seabed, cutting sediment plumes.

The Metals Company released a short video on the polymetallic nodule. Its message is four metals in one rock, with many uses.

TMC shows how its Allseas-built collector hopper separates sediment. It returns 95 to 98% of the sediment to the seafloor before the riser.

TMC's riser system uses offshore technology to lift nodules. It draws on over 50 years of offshore industry innovation.

TMC shows how an Allseas diffuser returns sediment to the seafloor. Tuning its flow rate and geometry keeps the plume local and predictable.

TMC executive Rutger Bosland details how nodules reach the surface. The design draws on more than 50 years of offshore industry innovation.

TMC describes its commercial nodule collection system's trip. The nodule's journey from seafloor to surface vessel takes about 25 minutes.

TMC used ROVs to image seafloor life near its test mining site. A year after mining, ROV images showed nodules shed sediment, becoming habitat again.