Domestic raw material base: gracilaria breeding bases are mainly located in nangri Island, Xiapu, Zhangzhou and other islands in Putian, Fujian without pollution, supplemented by gracilaria breeding bases in Nanao Island, Weihai and other islands in Guangdong.

Foreign raw material base: at present, Indonesia is the main import raw material base, and tries to develop raw material bases in Chile, Argentina and other countries.。