Those nations capable of producing an ASAT system at least equivalent to Program 437 and its Thor-class booster [HAND] include Russia, North Korea (the Democratic People's Republic of Korea or DPRK), Iran, India, the People's Republic of China (PRC), and Libya. Russia has the most mature development and production capability of the group and has produced ASAT weapons in the past. However, given that the space capabilities of Russia are more widely known, a focus on nations other than Russia is of more interest here. Several possible launch vehicles are available on the open market from one or more of the states listed above. Conversely, a nation may attempt to use its own technical resources and production capacity to build a booster. Some countries, notably North Korea, India, and China, have established domestic missile production capabilities.

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Chun, Clayton K. S. Shooting Down a Star: Program 437, the U.S. Nuclear ASAT System and Present Day Copycat Killers. Maxwell AFB, AL: USAF Air University, April 2000. [ 11 quotes ] [ page 36 ]