Mars Type 12;[a] KN-17 under the U.S. naming convention)[9] is a mobile intermediate-range ballistic missile developed by North Korea.

The Hwasong-12 was first revealed to the international community in a military parade on 15 April 2017 celebrating the Day of the Sun which is the birth anniversary of North Korea's founding President, Kim Il Sung.

[6] In the April 2017 military parade the Hwasong-12 was displayed on the Hwasong-10 mobile launcher, and it may be intended to replace the similarly performing Hwasong-10 which has been shown unreliable during its test program.

[27] This was one of the five 'most important' weapons laid out in a five year plan in the 8th Congress of the Workers' Party of Korea, where the development of the missile was reported to have already been completed.

[29] The test reportedly confirmed its navigational control and stability, as well as the guiding manoeuvrability and flight characteristics of the detached hypersonic gliding warhead.

[27] The South Korea Joint Chiefs of Staff (JCS) assessed that the Hwasong-8 was at an early stage of development and would take a "considerable period of time" until it could be deployed in combat.

At 07:23 a.m. Pyongyang Standard Time on 4 October 2022, North Korea launched a missile from Mupyong-ni Arms Factory, Jagang Province.