“... If a company (A) enters into an agreement with B under which B acquires benefits from A, A’s ability to recover these benefits from B depends essentially on whether the agreement is binding on A. If the directors of A were acting for an improper purpose when they entered upon the agreement, A’s ability to have the agreement set aside depends upon the application of familiar principles of agency and company law. If, applying these principles, the agreement is found to be valid and is therefore not set aside, questions of “knowing receipt” by B do not arise. So far as B is concerned there can be no question of A’s assets having been misapplied. B acquired the assets from A, the legal and beneficial owner of the assets, under a valid agreement made between him and A. If, however, the agreement is set aside, B will be accountable for any benefits he may have received under the agreement. A will have a proprietary claim, if B still has the assets. Additionally, and irrespective of whether B still has the assets in question, A will have a personal claim against B for unjust enrichment, subject always to a defence of change of position. B’s personal accountability will not be dependent on proof of fault or “unconscionable” conduct on his part. B’s accountability, in this regard, will be ‘strict’.”
“I agree with my noble and learned friend, Lord Goff of Chieveley, that it is right for English law to recognise that a claim to restitution, based on the unjust enrichment of the defendant, may be met by the defence that the defendant has changed his position in good faith. I equally agree that in expressly acknowledging the availability of the defence for the first time it would be unwise to attempt to define its scope in abstract terms, but better to allow the law on the subject to develop on a case by case basis.”
“For the purposes of this section and section 241, a company enters into a transaction with a person at an undervalue if - (a) the company makes a gift to that person or otherwise enters into a transaction with that person on terms that provide for the company to receive no consideration, or (b) the company enters into a transaction with that person for a consideration the value of which, in money or money’s worth, is significantly less than the value, in money or money’s worth, of the consideration provided by the company.”