Singapore Telecommunications (SingTel) is considering selling a minority stake in its Australian unit Optus through an IPO in Australia that could raise between $4 and $5 billion.

Singapore Telecommunications (SingTel) is considering selling a minority stake in its Australian unit Optus through an IPO in Australia that could raise between $4 and $5 billion. The plan is still at an early stage and the final decision is likely to be taken after 2010.