North Korea has a massive stockpile of chemical weapons—much of which can be used in conjunction with its artillery forces. But the poisons—which Pyongyang can produce domestically—can also be delivered by air or ballistic missile.
According to the Nuclear Threat Initiative:Sponsored Links
“North Korea may possess between 2,500 tons and 5,000 tons of CW agents. The South Korean government assesses that North Korea is able to produce most types of chemical weapons indigenously, although it must import some precursors to produce nerve agents, which it has done in the past. At maximum capacity, North Korea is estimated to be capable of producing up to 12,000 tons of CW. Nerve agents such as sarin and VX are thought be to be the focus of North Korean production.”
Nonetheless, North Korea’s weak economy and isolation hampers its production of such weapons.