The Recruitment and Training Promotion Fund, created pursuant to Act 2009-563 for the benefit of the State of Alabama and the citizens thereof, shall continue to exist as a special fund in the State Treasury and shall be funded with construction craft industry fees administered in accordance with this article. The revenue received by the fund shall be invested by the State Treasurer in permitted investments until the institute uses money for the purposes established by this article. Earnings on permitted investments shall remain part of the fund.