I'm sorry to say but that looks too familiar. There has been a hoax before passing a picture of a Tomahawk as some new Chinese cruise missile and it looks like very similar to this picture or this one exactly. I also don't believe the designation HN (Hong Niao or Red Bird) is really used for Chinese cruise missiles, technically it should be DH or Dong Hai as in East Wind.
Something doesn't add up. It's already known CHina had Cruise missile for awhile, and converting that into sea based version is not a stretch by now. It could be those folks doesn't have an offical pic and copy that from the tomahawk.
The fact that China has sea launched AshM is no doubt. The fact that they may convert these AshMs (YJ-83s) into land based attack variants is a distinct possibility, even though there is no confirmation yet. Yet YJ type missiles have been converted into ground attack use as the KD series as they appear on the JH-7As.
The next stage is using the YJ-62 airframe, which looks a lot more like the Tactical Tomahawk. Already we know it has a ship launched version, from the 052D series. It may have ground launched versions as well. It may also have an air launched version via H-6H and possibly a ground attack version as the KD-62.
The problem is that this missile seems larger than the YJ-83. The question remains whether this missile can be launched off from standard size 533mm torpedo tubes that appear to be mostly used by Chinese submarines today. The LA class has 533mm tubes but the Tommies appear needed to be launched from special VLS tubes just behind the bow. The Seawolf class can launch Tommies from the torpedo tubes, but these are big 660mm tubes. Some of the Russian SSN classes like the Akula have 650mm tubes. I feel that you can practically rule out the PLAN SSKs, the Song and the Yuan from having tubes larger than 533mm. The Kilo EMs on the other hand, have Klubs, and one of the version of the Klub is a land attack missile. The question is whether China actually purchased this version.
That leaves out the PLAN nuclear submarines. I think we can rule out the Hans from having 650mm tubes, but the Shangs and the Jins are a big question mark. There is also a theoritical possibility that the refitted Xia may be converted into a SSGN firing cruise missiles off its back. That however needs to be confirmed.
There is not a lot of information about the DH-10, and that appears to be a class higher than the YJ-62. It may also be a lot bigger but we can't be sure unless we have the exact dimensions for all of them and see if they can fit within 533mm or 650mm tubes.
The 094 VLS tube should be house any big sized cruise missile.
I don't consider YJ-62 as real cruise missile because its' short ranged.
YJ-62 range is about 250km, whereas real cruise missile need to reach the range of SRBM, 500Km or above.
I think there's need to build some VLS diesel sub, diesel sub is cheaper and capable of carrying long range cruise missile.
You need the missile to be under 533mm in diameter to fit the tube. The Tomahawk seems to be very close at 0.52m. Question is what is the diameter of the YJ-62 and DH-10.
A diesel sub for cruise missile launching isn't a very good one, because such subs are small, tight in space, and for every cruise missile you put in, would mean less torpedoes or anti-ship missiles. The Russians did have a proposal for the Amur 950, which has Klub missiles in VLS at the back. You should rather have nuclear submarines do that job, because they're much bigger and can store a lot more. The Seawolf for example, can load about 40 to 50 missiles or torpedoes, the Akula can pack about the same number. In comparison, a Song can only carry 16 torpedoes or missiles, and that's already among the better end for diesel submarines.