OLD Mutual got the go ahead from the Cape High Court on Monday to convert to a listed company and demutualise. The firm also has permission to list in London and Johannesburg, adding to the list of South African corporate giants making the trek overseas. The ruling stated the demutualisation scheme is fair, commercially sound, and will safeguard the interests of policyholders. Old Mutual will seek a primary listing in London by mid-year, and is waiting for approval from other countries where it has operations.