The Casting Magnesium Anode market can be dissected by application, which directly drives demand across sectors. In the Marine industry, magnesium anodes protect hulls and propellers from galvanic corrosion, accounting for roughly 45% of total revenue due to the extensive global fleet. The Oil‑and‑Gas segment, encompassing offshore platforms and subsea pipelines, contributes about 30%, reflecting high‑value corrosion‑critical assets that require continuous anode replacement. Power‑Generation facilities, especially thermal and hydroelectric plants, represent near‑15% of the market, as turbine casings and water‑way components rely on magnesium for sacrificial protection. Infrastructure projects—bridges, pipelines, and water‑treatment plants—make up the remaining 10%, driven by municipal investment cycles. This application‑based taxonomy clarifies how each sector’s operational lifespan and regulatory environment shape the overall Casting Magnesium Anode market size, and it underpins the "Casting Magnesium Anode segmentation" used in forecasting models.