A couple for now:
TWIST (1995), with Simon Yam and Danny Lee. One of the better slick crime thrillers Danny Lee was churning out in those days. Plenty of good reasons for the Cat. III rating beyond nudity.
FATAL PASSION (1990) Quoting from last year's digital rummage thread (after much digging)
Brian Thibodeau wrote: . . . I finally watched the Category III thriller FATAL PASSION a couple days back. What an awesome movie! It's a total rip on FATAL ATTRACTION, but imagine if Glenn Close's character had a crazed, jealous assassin for a boyfriend! That's Alex Man in this flick. Nancy Chang plays the Close character, but since this is a Hong Kong flick and the damaged relationship between the hero (Eddie Cheung) and his mousy, far-too-forgiving wife (Cher Yeung) therefore can't be left with a question mark hanging over it the way it was in the American film, Nancy Chang gets iced about two-thirds in so Alex can go nuts with a cunning abandon. This has to be one of the few movies where a character who's completely on fire is able to get in a car and drive it at another character! Take that, Johnny Blaze!