INEOS, the chemicals group which owns Runcorn-based Ineos Chlor, could raise £536.7m from the bond market to help it refinance its £5.1bn debt mountain.
It is reportedly targeting the bond market, with interest in a bond issue said to be strong.
Bank of America, Citigroup, Deutsche Bank, Goldman Sachs, Barclays, Lloyds TSB, JP Morgan, Morgan Stanley and UBS are believed to be managing the bond auction for the group, which was founded by billionaire Jim Ratcliffe and is one of Britain's biggest privately-owned entities.
Ineos is currently involved in a bond auction but it is expected to return to the market later this year to raise further funds to refinance its debts.





