93Groups of companies
(1)This section applies if—
(a)at the end of an accounting period a company in which an amount of government investment is written off is in a group of companies, and
(b)under section 92(2) or (3) an amount could be set off against the company’s carry-forward losses as at the end of that period (or could be so set off if there were enough of those losses).
(2)The amount may be set off (wholly or partly) against the carry-forward losses of one or more companies within subsection (3), as may be just and reasonable.
(3)A company (other than the company referred to in subsection (1)(a)) is within this subsection if at the end of the accounting period it is in the group of companies.
(4)A “group of companies” consists of a company that has one or more 51% subsidiaries, together with that or those subsidiaries.