The rights of a company under a contract approved under Article 174 or 175, or under a contract for a purchase authorised under Article 176, are not capable of being assigned.

An agreement by a company to release its rights under a contract approved under Article 174 or 175 is void unless the terms of the release agreement are approved in advance by a special resolution of the company before the agreement is entered into; and paragraphs (3) to (7) of Article 174 apply to approval for a proposed release agreement as to authority for a proposed variation of an existing contract.