Distribution of fish protein organic fertilizer

Major domestic and international fish protein manufacturers include Zhejiang Ougenake, Zhejiang Xintianlong, Qingdao Songtian, Zhenong Marine, Rongcheng Hongde Marine, USA-based Priden, Shanli Fish Protein, Haida Wenxi Biotechnology, Taiwan Vedan, Qingdao Runyang, and Shandong Wotuyuan. Key regions for the production and R&D of fish protein fertilizers in China include Zhejiang, Shandong, and Guangdong. Zhejiang leads the industry in standardization, while Qingdao, Shandong, is a hub for numerous manufacturers of enzymatically hydrolyzed fish protein.

Since 2012, the fish protein fertilizer industry has developed rapidly and attracted significant market attention. However, due to the lack of unified national standards and effective regulation, the market suffers from issues such as a mix of high- and low-quality products, small-scale "workshop-style" production, and chaotic labeling practices.