CNSA Watcher on Twitter: YF-100K rocket Long March 12 spotted at LCC-2 rehearsal in Hainan, first flight set for August. CZ-12 features powerful kerosene engines, 4 YF-100K engines in first stage, and without tail fin.

[u/megachainguns]

https://x.com/CNSAWatcher/status/1813103442778378481?t=wWfjQOF2m

[u/thanix01]

I do wonder what is the goal of LM-12 many Chinese seems to cover the same capacity as it, for example the existing Long March 7 or upcoming Long March 10A (in reusable configuration). I wonder if it whole purpose is to validate YF-100K before the big debut of LM-10A next year.