The Seaweed Derived Mineral ecosystem comprises a sequence of upstream, midstream, and downstream activities that together generate marketable mineral products from marine biomass. Upstream, coastal harvesters and raw material suppliers collect and process seaweed species rich in calcium, iodine, and trace elements. Midstream actors include technology providers that operate extraction, purification, and crystallisation processes, as well as OEM manufacturers that formulate the minerals into powders, liquids, or fortified ingredients. Downstream, distributors, specialty ingredient distributors, and end‑user manufacturers in nutraceuticals, animal feed, and cosmetics incorporate the minerals into final formulations. Value is created through bioconversion efficiency, regulatory compliance, and product differentiation, while capture occurs at each conversion and packaging stage.