Manufacturer catalog

Ryongsong Machine Complex

Ryongsong Machine Complex is a North Korean state machine-building and defense-industrial complex in the Hamhung area of South Hamgyong Province. Open reporting links the complex to heavy machinery for mines and factories, a state-backed modernization program, and the February 11 Plant, a subordinate site associated with Hwasong-11-family solid-fuel ballistic missile production.

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Ryongsong is best understood as a large North Korean industrial complex rather than a transparent standalone corporation. South Korean and international reporting describe it as a major machinery plant in South Hamgyong Province that supplies equipment to key mines and other industrial factories, while DPRK state coverage has framed the 2026 first-stage modernization project as part of the country's machine-building development.

Ryongsong's defense relevance comes from open-source analysts and Reuters-linked reporting that identify the February 11 Plant as part of the Ryongsong Machine Complex near Hamhung. That plant is tied in public reporting to Hwasong-11A and Hwasong-11B production, known externally as KN-23 and KN-24, and broader Hwasong-11-family component production and final assembly. Ryongsong provides the larger industrial-complex context, while February 11 Plant remains the more specific facility named in missile-production reporting.

Machine-buildingIndustrial equipmentBallistic missile assembly through subordinate plant facilitiesSolid-fuel missile production support

Notable Systems

North Korean KN-23 / KN-24, Road-mobile short-range ballistic missile family, Artillery

Hwasong-11A / Hwasong-11B (KN-23 / KN-24)

Road-mobile short-range ballistic missile family

Reuters-linked reporting describes the February 11 Plant as part of the Ryongsong Machine Complex and as a production site for Hwasong-11A and Hwasong-11B short-range ballistic missiles, known externally as KN-23 and KN-24.

Sources: Kyiv Post Reuters summary, CSIS KN-23, CSIS KN-24
Hwasong-11C tactical ballistic missile, Road-mobile solid-fuel short-range ballistic missile, Munitions

Hwasong-11C tactical ballistic missile

Road-mobile solid-fuel short-range ballistic missile

Hwasong-11C is a larger Hwasong-11-family branch. CNS analysis on Arms Control Wonk describes the February 11 Plant as a component-production and final-assembly site for Hwasong-11 missiles, supporting Ryongsong-complex production context while leaving operational-use claims to system-specific sources.

Sources: Arms Control Wonk expansion analysis
Hwasong-11D tactical ballistic missile, Small solid-propellant tactical ballistic missile, Munitions

Hwasong-11D tactical ballistic missile

Small solid-propellant tactical ballistic missile

The smaller Hwasong-11D branch is part of the same solid-fuel tactical missile family. CNS analysis framed February 11 Plant expansion around demand for Hwasong-11 missiles and launch-unit requirements; the source supports production context, not operational-use claims.

Sources: Arms Control Wonk expansion analysis

Manufacturer History

  1. Factory imagery tied to solid-propellant missile casing work

    Open Nuclear Network reported that DPRK media showed Kim Jong Un at a munitions factory whose imagery suggested production of metal casings for solid-propellant motors, and that the factory was suspected to be the February 11 Plant of Ryongsong Machine Complex in Hamhung.

    Sources: Open Nuclear Network January 2022 tests

  2. Satellite imagery points to missile-plant expansion

    Reuters-linked reporting republished by Kyiv Post described satellite imagery of expansion at the February 11 Plant, identifying it as part of Ryongsong Machine Complex and associating it with Hwasong-11A and Hwasong-11B production.

    Sources: Kyiv Post Reuters summary

  3. CNS analysts describe added assembly capacity

    Arms Control Wonk published CNS analysis describing new construction at February 11 Plant, including likely additional assembly space and worker housing, and linked the changes to higher Hwasong-11 missile throughput.

    Sources: Arms Control Wonk expansion analysis

  4. First-stage Ryongsong modernization ceremony

    Yonhap and AP reported KCNA coverage of a first-stage modernization ceremony at Ryongsong Machine Complex, with Kim Jong Un setting next-stage modernization goals for the complex and machine-building sector.

    Sources: Yonhap modernization report, AP modernization report

Subsidiaries
February 11 Plant

Ryongsong has no verified public corporate website; the DPRK state portal is included for official industrial-project coverage. Public sourcing is strongest where South Korean reporting, Reuters-linked reporting, satellite-imagery analysis, and specialist nonproliferation analysis describe the complex, the subordinate February 11 Plant, and Hwasong-11-family production context. KCNA/AP facility photographs were not reused because rights-clear reuse was not verified.

Manufacturer Sources

  • Yonhap modernization reportPublisher: Yonhap News Agency | Note: Supports Ryongsong Machine Complex location in South Hamgyong Province, its role as a major machinery plant supplying mines and factories, and the January 2026 modernization context. | Accessed: 2026-07-11
  • AP modernization reportPublisher: Associated Press | Note: Supports the first-stage modernization event, the state machinery-sector context, and AP's caveat that KCNA-distributed facility imagery could not be independently verified. | Accessed: 2026-07-11
  • Kyiv Post Reuters summaryPublisher: Kyiv Post | Note: Supports reporting that the February 11 Plant is part of Ryongsong Machine Complex near Hamhung and is associated with Hwasong-11A / Hwasong-11B missile production and late-2024 expansion. | Accessed: 2026-07-11
  • Arms Control Wonk expansion analysisPublisher: Arms Control Wonk | Note: Supports CNS analysis of February 11 Plant expansion, component-production and final-assembly context, underground facilities, support construction, and broader Hwasong-11 missile throughput. | Accessed: 2026-07-11
  • Open Nuclear Network January 2022 testsPublisher: Open Nuclear Network | Note: Supports the January 2022 assessment that a DPRK media factory visit showed apparent solid-propellant motor casing production and was suspected to be the February 11 Plant of Ryongsong Machine Complex in Hamhung. | Accessed: 2026-07-11
  • CSIS KN-23Publisher: Center for Strategic and International Studies | Note: Supports KN-23 / Hwasong-11A background, class, basing, propulsion, range, and family context for the catalog-linked notable system. | Accessed: 2026-07-11
  • CSIS KN-24Publisher: Center for Strategic and International Studies | Note: Supports KN-24 / Hwasong-11B background, class, basing, propulsion, range, and family context for the catalog-linked notable system. | Accessed: 2026-07-11

Produced weapons

Category

Artillery

Tube artillery, rocket artillery, and long-range ground fires.

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