If at any time section 521B of CTA 2009 (application of Part 5 of that Act to certain shares as rights under a creditor relationship) begins or ceases to apply in the case of a share held by the investing company it is treated for the purposes of this Act—
In this section—
"notional carrying value" has the same meaning as in subsection (2) of section 521F of CTA 2009 (see subsection (3) of that section),
"investing company" has the same meaning as it has for the purposes of Chapter 6A of Part 6 of that Act (shares accounted for as liabilities) (see section 521A(3) of that Act).