The distribution of laver in China is regional, mainly distributed in the intertidal zone from the Yellow Sea and the Bohai Sea to the southeast coast. The main producing provinces and cities include Fujian, Zhejiang, Jiangsu, Shandong, and other southeast coastal provinces and cities. The export volume of laver is huge, according to the import and export data of China Customs, In 2021, the export output of laver reached 4293 tons. Among the provinces and cities where laver is mainly exported, Fujian Province is the most exporting province.
Dried seaweed contains 30% ~ 50% crude protein, rich in dietary fiber, a variety of vitamins, calcium, potassium, magnesium, and other trace elements, but also contains algae unique phycobilin, high nutritional value, is a kind of valuable Marine food. Since 2019, food such as laver roll with laver as the main raw material has become a hot food, providing a new business idea for the field of laser processing. Laver is no longer only used to make purple cake, and other products have gradually emerged. Stuffed nori,roasted seaweed rolls, roasted nori, and other products are selling well. Many production enterprises have provided standardized industrial development services for the planting, processing, and sales of nori. More in line with the current popular e-commerce and logistics, they can achieve a wider range of sales and efficient transportation efficiency.