Li has also been subject to US sanctions since 2018 over the purchase of combat aircraft and equipment from Russia’s main arms exporter, Rosoboronexport.

Source: https://www.opinionnigeria.com/just-in-china-declines-meeting-with-us-defence-chief-pentagon/

Since 2018, Chinese Defense Minister Li Shangfu has approved the purchase of fighter jets and equipment from Rosoboronexport, Russia’s main arms exporter.

Source: https://houstonianonline.com/chinas-ambassador-to-the-us-heads-to-the-pentagon-for-rare-security-talks/