Русско-англо-русский юридический словарь

Put simply, if a party is able to meet its obligations under a contract, it is generally required to do so, even if it means greater inconvenience or higher costs. (Law360)

Subcontracting is the delegation by one party (the main contractor) of some or all of its obligations under a contract between it and a customer to a third party (the subcontractor) for performance by the subcontractor. (LexisNexis)