(a) A county primary fund is created for each county executive committee of a political party holding a primary election.
(b) The county primary fund consists of:
(1) the filing fees required to be deposited in the fund under Subchapter C;
(2) the state funds paid to the county chair under Subchapter D;
(3) the contributions to the county executive committee for the purpose of defraying primary election expenses; and
(4) the income earned by the fund.