Seaweed farming is one of the fastest-growing sectors in aquaculture, contributing significantly to global food, industrial, and pharmaceutical markets. Below is an overview of the current state of global seaweed production based on available data. Global Production Volume in 2020 Data- Global seaweed production reached approximately 35.8 million metric tons (fresh weight). This production is dominated by aquaculture, with nearly 97% of seaweed coming from farmed sources. The largest producers are China and Indonesia, contributing a significant share of global production. China alone accounted for more than 57% of global seaweed output.