CHC Global Ops, CHC Scotia, Australia et al all are tied into lease agreements with Heli One for the operational aircraft. H1 in turn owns some and leases others in from the banks/companies that own them.
Then the operators (CHC) are tied into an exclusive support contract with H1 for spares backup, which is where the hassle to the operating groups comes in because H1 also has 3rd party contracts with various companies to supply spares and overhaul and the CHC operations seem to be getting shortchanged for spares at the expense of the 3rd party customenrs who bring in the cash.
Within the CHC/H1 system it's all a paperwork exercise that the beancounters squabble over among themselves.