But as far as I know Mitsubishi's RA-4 color paper is manufactured by themselves.
Lucky was there, but unfortunately I had no time left to visit their booth.
Just some weeks ago there was an official statement from Lucky that they stop their colour negative film production, it was also posted here on apug:
Due to the current available data, afaik production of RA-4 paper and BW film is continued.
Well, their BW film: The emulsion has solid quality, but there is no antihalation layer. Some photographers like this and use the film for this "Aura" effect in back light scenes.
Other Chinese manufacturer of BW film: Shanghai. If you want to try some, best is to look for film distributors in HongKong or Macau.
But there are so much excellent BW films from Ilford, Kodak, Fuji, Adox, Maco/Rollei-Film (Agfa-Gevaert), Foma, FilmoTec. I think there is very little necessity to make the hassle with getting Chinese films.
In the UK there is only one brick-and-mortar shop selling Lucky B&W film. Most of it is available via Ebay sellers based in China and South Korea. I bought recently some to try the Super Colour 100 and SHD 100.
As Henning said, Lucky stopped production of their Super Colour 100 and 200 films. B&W in the form of the SHD 100 is still in production. They also produced a 400 ISO and a CN 400 ISO versions, but I can't find them anywhere and suspect production has ended for these films. Be aware that SHD 100 has had some problems in 120 format due to the type of tape used to stick the backing paper to the film. I'm not sure if they have corrected the problem as I don't use 120 film. The film is also thin.
In the past China Lucky had a collaborative agreement with Kodak until Kodak pulled out in 2008. But Lucky got some Know-How from Kodak.
In India there is HINDUSTAN PHOTO FILMS a government run enterprise which manufactures B&W films and papers - sold under the INDU brand name.