Section 405 | The aggregate tax-EBITDA of a worldwide group

For the purposes of this Part “the aggregate tax-EBITDA” of a worldwide group for a period of account of the group is—^F1

(a)the total of the tax-EBITDAs for the period of each company that was a member of the group at any time during the period, or^F1

(b)where the amount specified in paragraph (a) is negative, nil.^F1