| Company Name | Type | Status |
|---|---|---|
| POSCO ASIA COMPANY LIMITED | Private company limited by shares | Live |
| POSCO INVESTMENT CO., LIMITED | Public company limited by shares | Ceased to exist as a separate entity |
| POSCO INTERNATIONAL LIMITED | Live | |
| POSCO OPTOELECTRONIC LIMITED | Private company limited by shares | Dissolved |
| POSCO Trading Co., Limited | Private company limited by shares | Live |
| POS.COM LIMITED | Private company limited by shares | Dissolved |