In present day what is the most valuable non living commodity obtained from the sea floor?

As of present day, the most valuable non-living commodity obtained from the sea floor is likely rare earth minerals, including elements like neodymium and dysprosium, which are essential for modern technologies such as electronics and renewable energy systems. Additionally, polymetallic nodules, which contain valuable metals like nickel, copper, and cobalt, are also gaining attention for their potential economic importance. The extraction of these resources is increasingly being explored due to the growing demand in various industries.