639Overview of ChapterU.K.
(1)This Chapter makes provision about cases in which—
(a)credits and debits are not to be brought into account in accordance with section 574 (non-trading credits and debits to be brought into account under Part 5: loan relationships) (see sections 640 and 643 to 650), but
(b)instead profits arising to a company from its derivative contracts are chargeable to corporation tax as chargeable gains (see sections 641 to 650).
(2)This Chapter also makes provision about cases in which—
(a)credits and debits are not to be brought into account in accordance with section 573 (trading credits and debits to be brought into account under Part 3: trading income) or section 574 (non-trading credits and debits to be brought into account under Part 5: loan relationships) (see section 651), but
(b)instead provisions relating to corporation tax on chargeable gains apply in relation to derivative contracts (see sections 652 to 658).