Wanshan Special Vehicle

Its WS-series military trucks are used by the People’s Liberation Army; it is a major manufacturer of transporter erector launchers (TEL).

[3] Wanshan has benefited from technology transfers from Deutz AG, Caterpillar Inc., Isuzu Motors and ZF Friedrichshafen.

It has been claimed that this sale violated non-proliferation agreements;[17][18] although China is not a member of MTCR, its own arms-control rules are similar.

The North Korean government is investing in transporter-erector-launchers which are a more difficult target for adversaries, compared to fixed missile launch sites.

[19] UN and Asean investigators have concluded that the TELs were Chinese WS51200 trucks legitimately exported to North Korea for lumber transport, with the sales contract specifically prohibiting use of the vehicles for military purposes.

A DF-11 TEL vehicle, based on the WS2400.
North Korea's ballistic missile; North Korea Victory Day, 2013