Rick Joe on Twitter: "From Yankeesama's WeChat blog: https://t.co/pSrbdJqdRC Claims a hypersonic AShM "YJ-XX" meant for 055 has done land tests. Designed to be capable of defeating defences like SM-3 Blk IIA and SM-6 Blk IA. Likely related to the famous ship launched HGV/AShBM slide.… https://t.co/H595Gpp4KE"
I think it's the CM-401
CM-401 supersonic anti-ship ballistic missile: Details
Type 055 destroyer: Details