Transportation Department Factory 1902
was built in 1966 in the mountainous area in the northeastern part of Ruyang County.
was code-named 1902 Factory at that time, which belonged to the Provincial Department of Transportation. It was a combat readiness factory established during the third-line construction of .
's main task is to repair cars, and at the same time produce auto parts, valves, clutch pedal , transmission shaft.
was officially put into production in 1970, with 3 workshops built in advance, more than 120 pieces of equipment installed, and 320 employees.

State-owned 9689 Factory, Ruyang Auto Repair Factory
In 1973, it was placed under the management of the Provincial National Defense Work Office, code-named State-owned 9689 Factory, Ruyang Auto Repair Factory.
mainly undertakes vehicle maintenance tasks for third-tier military units in the province. Because
is located in a mountainous area and has a single business scope, it has been losing money since it was put into production.
In January 1988, it was placed under the management of Luoyang City.
The 9689 factory was subsequently merged into Luoyang Steel Plant, led by Luoyang Steel Steel Flower Company.
split the original factory and established 4 factories respectively:

[The ruins in the mountains]

[The ruins in the mountains]

[Relics in the mountains]
Luoyang No. 1 Automobile Decoration and Repair Factory; Luoyang Ganghua Enterprise Company Machinery Factory;
Luoyang Plum Blossom Jade Craft Factory; Luoyang Qingsong Beverage Factory No. 2. The subsequent situation of
is unknown...
In 2003, Luoyang Steel Plant declared bankruptcy.
was later reorganized into Yongan Special Steel Company.

In 2017, the 9689 factory site was listed as a cultural relic protection unit
