Paragraph 1
“Relevant period” means in relation to any particular person—
where that person has, within the two years ending immediately before the date on which the agreement in question was made, completed an accounting period of more than six months, the last such period so completed, or
where that person has not completed such a period but has, within the six months ending immediately before the date on which the agreement in question was made, completed an accounting period of six months or less, so much of the period of twelve months ending on the last day of the last such period to be completed as during which that person was carrying on a business of supplying goods or services in the United Kingdom or otherwise carrying on business in the United Kingdom, or
in any other case, so much of the period of twelve months ending immediately before the date on which the agreement in question was made as during which that person was carrying on a business of supplying goods or services in the United Kingdom or otherwise carrying on business in the United Kingdom.