Section 45H | Section 45F: transfers of trade to obtain relief
From legislation.gov.uk
Section 45F does not apply by reason of a company ceasing to carry on a trade if—
(a)on the company ceasing to carry on the trade, any of the activities of the trade begin to be carried on by a person who is not (or by persons any or all of whom are not) within the charge to corporation tax, and
(b)the company's ceasing to carry on the trade is part of a scheme or arrangement the main purpose, or one of the main purposes, of which is to secure that that section applies by reason of the cessation.