I know there was a limited run of (made-in-China) Lucky SHD400CN (c-41 400 ISO B&W) in 35mm around 2006 - it was listed on Lucky's website, so I contacted a Taiwanese eBay film seller at that time, and he was able to get me some. As I recall, it was not bad - it resembled XP2 Super more than Kodak's BW400CN as it had a green-tinted base (sorry, I don't have any examples handy at the moment). I seem to recall it was only finished/packaged for 35mm at that time.
I think I bought 10 rolls of it. When I asked about buying more a few months later in Dec. 2006, he checked and was told there was no more, and they had no plans to produce any more unless someone was willing to pre-order 1.5 million 36 exp. 35mm rolls.
The seller I dealt with at the time was "isaac.chen" on eBay - he had contacts at the Lucky factory and was an honest seller at that time - if you can find him there it might be worth asking him directly.