Third Party Liability Vs Comrehensive Genl Liab Insurance

We have a Contractors All Risk Insurance in effect which covers third party liability as well.

The Technical Services Agreement with an International Hotel Chain stipulates a Comprehensive or Comemrcial General Liability insurance covering:
1) Premises and Operations Liability
2) Independent Contractors Liability
3) Products and Completed Operations Liability
4) Contractual Liability covering owners' indemnity obligations
5) Additional Insureds- Employees
6) Broad form Property Damage Liability, including completed operatioons,
7) Blanket X, C and U coverage
8) Severability of Interests provision.

Please advice whether Comprehensive or Comemrcial General Liability insurance nned to be purchased notwithstanding the fact that we have thrid party liability covered under CAR.

Thanks in Advance.

Regards

Siddique