The UK P&I Club will replace insurance giant AIG in underwriting the growing fixed-premium protection and indemnity business of Thomas Miller Specialty.

Thomas Miller, manager of the UK P&I Club and seven other mutual businesses, said it would end its three-year agreement with AIG in January next year.

It has been growing its fixed-premium offering through offshoot Thomas Miller Specialty's acquisition of established players Hanseatic, Osprey and Lodestar.