Fuzhou Corona attaches great importance to the research and development of extraction process, selects the best process through numerous small pilot tests and continuously improves it during large-scale production to ensure that the extraction technology used is the most advanced in the world.

Fuzhou Corona strictly controls every step from raw material screening, production, packaging to finished product shipping. The Quality Control Department is equipped with advanced equipment such as HPLC, GC, AAS, UV and TLC to monitor the bio-active ingredients, solvent residues, heavy metals, pesticide residues, microorganisms and other indicators.

There is a warehouse in the United States of America. equipped with regular demand products all year round to meet the immediate needs of customers in North and South America.