That said, let me share some unnerving open source facts from the Federation of American Scientists (FAS):
China is widely reported to have active programs related to the development of chemical and biological weapons, although essentially no details of these programs have appeared in the open literature.
China is believed to have an advanced chemical warfare program that includes research and development, production and weaponization capabilities. Its current inventory is believed to include the full range of traditional chemical agents. It also has a wide variety of delivery systems for chemical agents to include artillery rockets, aerial bombs, sprayers, and short-range ballistic missiles. Chinese forces have conducted defensive CW training and are prepared to operate in a contaminated environment…
On 30 December 1996 the Standing Committee of the National People’s Congress China ratified the Chemical Weapons Convention [CWC]…
China possesses an advanced biotechnology infrastructure as well as the requisite munitions production capabilities necessary to develop, produce and weaponize biological agents. Although China has consistently claimed that it has never researched or produced biological weapons, it is nonetheless believed likely that it retains a biological warfare capability begun before acceding to the BWC.
China is commonly considered to have an active biological warfare program, including dedicated research and development activities funded and supported by the Government for this purpose. There is essentially no open source data on the subject of Chinese BW activities, and many legitimate research programs use similar, if not identical equipment and facilities.