A disagreement between deep-sea miner The Metals Company (TMC) and researchers over a new scientific study is threatening efforts to mine the ocean bed for metals critical to supporting the green-energy transition. A study in the journal Nature Geoscience suggested that deep-sea nodules, which contain metals such as nickel critical for electric-vehicle batteries, produce oxygen despite the absence of light at the bottom of the ocean. The researchers making the claim called for further studies into how oxygen is produced on the ocean floor while environmental groups called for a halt to disrupting the seafloor and mining of nodules. TMC and some scientists are questioning the claim and accusing the lead authors of the study of plagiarism… The study comes at a time of troubled waters for the deep-sea mining industry, with political uncertainty and TMC struggling for new sources of investment.

In the U.S., the outlook for the industry has improved recently. On the corporate side, both Tesla and General Motors shareholders have said they wouldn’t back a moratorium on deep-sea mining. Ocean-floor minerals are seen as key to making electric-vehicle batteries because of the presence of cobalt, nickel and manganese in nodules. In Washington in September 2024, a House hearing was held on the subject of deep-sea and critical minerals, as many see the metals found on the ocean floor as important for defense purposes. In a meeting co-chaired by Democrat Kathy Castor of Florida and Republican Robert Wittman of Virginia as part of the Select Committee on the Chinese Communist Party, Barron made the case for deep-sea nodules to become part of the U.S.’s critical mineral supply chain.

Meanwhile, industry leaders have gathered in the Cook Islands in September 2024 where a conference on deep-sea mining is taking place. The Pacific nation is home to thousands of tons of nodules, which are also rich in copper.

Excerpts from Yusuf Khan, Deep-Sea Mining Hits Crunch Point Amid Academic Battle Over Ocean-Floor Resources, WSJ, Sept 24, 2024