1.7 B is a sub-contractor of A. B takes out an insurance policy to cover his and A's liability to employees' compensation with an insurer (C), without joining A as a party. An employee of B is injured in the course of employment because of the negligence of A's employee. A pays the required compensation to B's employee. A, however, will have difficulties in seeking indemnity from C, since A is not a party to the insurance contract even though the parties intend to benefit him.