Guangzhou Chemical Co., Ltd., China Academy of Sciences (Guangzhou Institute of Chemistry, China Academy of Sciences)

They are state-owned enterprises, controlled by the Chinese Academy of Sciences and companies, but more than 60% are owned by the Chinese Academy of Sciences. They are all research institutes of the Chinese Academy of Sciences. Later, the national policy made them become limited companies, which promoted the research results to industrial applications and trained graduate students, with their own production lines or holding companies. But it is separate from the teaching laboratory, so there are graduate students and recruitment positions. If you work there, it must be a formal job.