according to: http://ipac.hkfa.lcsd.gov.hk/ipac/cclib ... 1550387205
Chiu Shu-Tai http://hkmdb.com/db/people/view.mhtml?i ... ay_set=eng
& Si Wai (1) http://hkmdb.com/db/people/view.mhtml?i ... ay_set=eng are the same person

If nobody stops me in 15 days I will merge them.

Merged:
??(1)
Si Wai (1)

Filmography (1938-1948)

Actor (10 films)
Stage Lights (1938)
Rich Dandy (1938) ... Chiu Lo-Ng
A Woman of Virtue (1939)
Destroy the Corpses! (1939)
Little Guangdong (1940)
Vixen with a Human Face (1940)
The Litter Tiger (1941) ... Siu Liu Foo
The Beauty's Death (1947)
Fight for Champion (1948)
Spring Time in a Luxurious Hall (1948)

and

???
Chiu Shu-Tai
Aliases: ??

Filmography (1938-1956)

Producer (2 films)
To Steal a Sweet Heart (1948)
Lui Bo Captures Diu Sim (1956)
Production Manager (3 films)
Charlie Meets the Spectres (1939)
Little Guangdong (1940)
Spring Time in a Luxurious Hall (1948)
Actor (2 films)
The Twelve Wives (Part Two) (1938) ... Lee Yat Man
Revenge of the Haunted Souls (1939)