Tiancheng's toxicology research system can be traced back to the last century. In the early stages of China's pharmaceutical industry, it undertook several national major new drug toxicology research work and won multiple national invention awards. In 1993, it participated in drafting the first version of the National Medical Administration's quality management standards for non clinical drug safety research. The company obtained GLP certification for the first time in 2007 and successfully passed re certification in 2010, 2013, 2017, and 2020. According to the guiding principles of CDE and ICH, it can provide scheme design and research reports that meet the regulatory requirements of China's NMPA, the United States FDA, and other countries. It has completed over 600 non clinical safety evaluation projects in total.