Nathan Tinkler, one of the key persons of interest at a corruption inquiry, is in Singapore just days before he is due to give evidence.

The former coal magnate is due to give evidence on Friday at the Independent Commission Against Corruption.

Nathan Tinkler is now in Singapore Credit:Nick Moir

A spokesman for the Tinkler Group said he was not aware of Mr Tinkler's travel arrangements but said he was already in Singapore, contrary to the Herald's earlier report that he was sighted leaving the country on Tuesday.

His spokesman said he would be leaving Singapore "in the next day or so" and would "definitely be appearing on Friday at ICAC".