TASS reported on Feb. 2 that Russia will deliver a second batch of 10 Su-35s ordered by China this year.
By Dmitry Terekhov from Odintsovo, Russian Federation (Sukhoi Su-35S) [CC BY-SA 2.0], via Wikimedia Commons
China place a contract for 24 aircraft and the first four were delivered in December of 2016. The final 10 aircraft will reach China in 2018.