The insurer's sale is drawing attention to South Korea's new K-ICS capital regime, which is expected to shape the scale of any required capital injection.
Samsung Life is also said to be looking at acquiring a 15% stake in Principal Financial Group, which would make it the US retirement provider's largest shareholder.
The Amwins-Dragoneer-KKR consortium is finalising documentation and financing for its proposed A$7.7bn (US$5.5bn) acquisition of Steadfast after entering the final stages of due diligence.