The quality control of Sangao biochemical products is realized through the establishment of raw material procurement and incoming inspection standing book, the review and approval of product production instructions, the supervision of the distribution and implementation of production records, intermediate control and the testing and release of intermediates, the review of production records, product testing and warehousing, pre delivery inspection and sample delivery, and the beginning of layers of quality assurance.

The quality goal of Sangao biochemical is to provide high-quality products, adhere to the quality policy of "focusing on customers and pursuing continuous improvement", implement detailed management in every link of quality control and quality management, assign responsibility to people, and continuously improve the basic elements of the management system to ensure that the quality of each batch of products meets or even exceeds the requirements of customers.

In order to ensure stable and reliable product quality, the company takes "excellence, high quality and efficiency, and enhance customer satisfaction" as its purpose. Take "high requirements, high standards and high quality" as the criterion of product quality; Based on the systematic demonstration of product process design, raw material supply and production technology, pay attention to quality control, and conduct in-depth research and control on impurity analysis and solvent residue, so as to ensure the high quality of products.