4.3 contractor's acceptance of this contract or, at company's request, commencement of the work (whichever is sooner) constitutes acceptance of the contract
4.4 where company contracts on behalf of any partners, co-licensees or co-ventures of company (co-ventures):
(i) nothing in the contract shall entitle contractor to commence proceedings against or will impose any liability on such co-ventures; and
(ii) company is entitled to enforce the contract on behalf of such co-ventures as well as itself