"First of all, it concerns contracts to supply spare parts for air defense systems, aviation and navy equipment," the minister's spokeswoman said.

The document was signed during a meeting of the Russian-Chinese intergovernmental commission on military cooperation in Beijing.

The sides noted "good perspectives for bilateral cooperation in spheres related to combat and military transport aviation, naval equipment, air defense systems and post-sale maintenance of Russian-made equipment that the Chinese army has in service," the spokeswoman added.