360R51. The expense referred to in paragraph b of section 360R48 does not include(a) the cost of borrowing capital, including a cost incurred before the start of operations of a business that constitutes a Canadian exploration expense;
(b) an expense renounced by the taxpayer under section 406 of the Act;
(c) an amount that, under paragraph d of section 395 of the Act, was for a taxpayer a Canadian exploration expense, if such amount was an expense referred to in any of paragraphs a, b and e to h that was incurred by a partnership referred to in such paragraph d;
(d) an amount that, under paragraph e of section 395 of the Act, was for a taxpayer a Canadian exploration expense, if such amount was an expense referred to in any of paragraphs a, b and e to h that the taxpayer incurred pursuant to an agreement referred to in paragraph e of section 395 of the Act;
(e) the expenses described in paragraph b or b.1 of section 395 of the Act that the taxpayer has incurred in a previous year and has included in computing Canadian development expenses for a previous taxation year;
(f) a Canadian exploration and development overhead expense;
(g) a Canadian oil and gas exploration expense; and
(h) the Canadian exploration expenses described in paragraph c of section 395 of the Act and incurred after 19 April 1983.