21. Contributions of investment firms.
(1) This section applies to investment firms but does not apply to certified persons in respect of whom an investor compensation scheme has been approved of under section 25.
(2) An authorised investment firm shall pay to the Company such contribution to the fund or funds maintained by the Company as the Company may specify from time to time.
(a) The Company may specify different rates or amounts of contributions or different bases for the calculation of contributions for different classes or categories of investment firm.
(b) despite paragraph (a), the Company may, when specifying rates, or amounts of contributions, or bases, for the calculation of contributions for investment firms, take account of any money, or investment instruments, entrusted to those firms (whether before or after the commencement of this Act) in connection with the provision by those firms of investment business services to the client.