SINGAPORE — Port operator PSA International, fully owned by Singapore state investor Temasek Holdings, is considering selling its multi-billion dollar, 20 per cent stake in the ports business of CK Hutchison Holdings, two sources familiar with the matter told Reuters.

PSA, the world's second-biggest container terminal operator, whose global network encompasses 160 locations in 42 countries, had acquired the stake in the Hong Kong-based conglomerate's ports business for US$4.4 billion (S$5.9 billion) in 2006.