HKFA lists 5:

Organization Entries
??(??)????, 2
??, 1
??????, 2
???????, 7
??????????, 1

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

Merged

Hwa Kuo Film Studio Co., Ltd.
?????????????


Filmography

Production Company
The Three Famous Constables (1983)

and

Hwa Kuo Movie Studio Ltd.
?????????

Alias: Hua Kuo Cinema Studio
Alias: Hwa Kuo Movie Studio Co., Ltd.

Filmography

Production Company
The Black Fox (1970)
13 Worms (1970)
Tragedy on Dikes (1971)
Midnight Cowgirl (1972)
Furious Dragon (1973)
Shaolin Kung Fu Mystagogue (1976)
The Invincible Space Streaker (1977)
Princess and the Toxicant (1977)
The Third Sword (1978)
A Sword Shot at the Sun (1979)
Drunk Fish, Drunk Frog, Drunk Crab (1979)
Hero at the Border Region (1981)
The Legend of All Men Are Brothers (1984)
Death Ring (1984)
Supercops (1987)
Spirit Vs Zombi (1988)

and

Hwa Kuo Movie Studio Co., Ltd.
??????


Filmography

Production Company
The Scholar Swordsman (1971)
The Peking Man (1974)
Desperate Love Bitter End (1979)

Distributor
The Champion of Champions (1971)
Bloody Mission (1982)