The Authority shall have the continuing power to borrow money for the purpose of carrying out and performing its duties and exercising its rights and powers under this Article.
     For the purpose of evidencing the obligation of the Authority to repay any money borrowed as aforesaid, the Authority may, pursuant to an ordinance adopted by the Board, from time to time issue and dispose of its interest bearing revenue bonds, and may also from time to time issue and dispose of its interest bearing revenue bonds to refund any of its interest bearing revenue bonds or its general obligation bonds at maturity or pursuant to redemption provisions or at any time before maturity with the consent of the holders thereof. All such interest bearing revenue bonds of the Authority shall be payable solely from such of the revenues or income to be derived from the fairs, exhibits, shows and events and other authorized activities operated by it, the charges made for the use of its facilities and the funds, if any, received and to be received by the Authority from any other source as are pledged by the ordinance authorizing the bonds. Such bonds may bear such date or dates, may mature at such time or times not exceeding forty years from their respective dates, may bear interest at such rate or rates, not exceeding the greater of (i) the maximum rate authorized by the Bond Authorization Act, as amended at the time of the making of the contract, or (ii) 8% per annum payable semi-annually, may be in such form, may carry such registration privileges, may be payable at such place or places, may be made subject to redemption in such manner and upon such terms, with or without premium as is stated on the face thereof, may be executed in such manner and may contain such terms and covenants, all as may be provided in said ordinance. In case any officer whose signature appears on any bond ceases (after attaching his signature) to hold office, his signature shall nevertheless be valid and effective for all purposes. The holder or holders of any bonds, or interest coupons appertaining thereto issued by the Authority may bring suits at law or proceedings in equity to compel the performance and observance by the Authority or any of its officers, agents or employees of any contract or covenant made by the Authority with the holders of such bonds or interest coupons, to compel the Authority and any of its officers, agents or employees to perform any duties required to be performed for the benefit of the holders of any such bonds or interest coupons by the provisions of the ordinance authorizing their issuance, and to enjoin the Authority and any of its officers, agents or employees from taking any action in conflict with any such contract or covenant.
     Notwithstanding the form and tenor of any such bonds and in the absence of any express recital on the face thereof that it is non-negotiable, all such bonds shall be negotiable instruments under the law of the State of Illinois.
     The bonds shall be sold by the corporate authorities of the Authority in such manner as said corporate authorities shall determine, except that if issued to bear interest at the greater of (i) the maximum rate authorized by the Bond Authorization Act, as amended at the time of the making of the contract, or (ii) the rate of 8% per annum, the bonds shall be sold for not less than par and accrued interest and except that the selling price of bonds bearing interest at a rate of less than the greater of (i) the maximum rate authorized by the Bond Authorization Act, as amended at the time of the making of the contract, or (ii) 8% per annum shall be such that the interest cost to the Authority of the money received from the sale of the bonds shall not exceed the greater of (i) the maximum rate authorized by the Bond Authorization Act, as amended at the time of the making of the contract, or (ii) 8% annually computed to absolute maturity of said bonds according to standard tables of bond values.
     From and after the issuance of any bonds as herein provided it shall be the duty of the corporate authorities of the Authority to fix and establish rates, charges, rents and fees for the use of facilities acquired, constructed, reconstructed, extended or improved with the proceeds of the sale of said bonds sufficient at all times, with other revenues of the Authority so pledged to pay:
     (a) the cost of maintaining, repairing, regulating and operating the said facilities; and
     (b) the bonds and interest thereon as they shall become due, and all sinking fund requirements and other requirements provided by the ordinance authorizing the issuance of the bonds or as provided by any trust agreement executed to secure payment thereof.
     To secure the payment of any or all of such bonds and for the purpose of setting forth the covenants and undertaking of the Authority in connection with the issuance thereof and the issuance of any additional bonds payable from such revenue income to be derived from the fairs, exhibits, shows and events and from charges made for the use of its facilities or for admissions to its events, or from other revenue, if any, the Authority may execute and deliver a trust agreement or agreements; provided that no lien upon any physical property of the Authority shall be created thereby.
     A remedy for any breach or default of the terms of any such trust agreement by the Authority may be had by mandamus proceedings in the circuit court to compel performance and compliance therewith, but the trust agreement may prescribe by whom or on whose behalf such action may be instituted.
     Before any such revenue bonds (excepting refunding bonds) are sold the entire authorized issue, or any part thereof, shall be offered for sale as a unit after advertising for bids at least 3 times in a daily newspaper of general circulation published in the metropolitan area, the last publication to be at least 10 days before bids are required to be filed. Copies of such advertisement may be published in any newspaper or financial publication in the United States. All bids shall be sealed, filed and opened as provided by ordinance and the bonds shall be awarded to the highest and best bidder or bidders therefor. The Authority shall have the right to reject all bids and readvertise for bids in the manner provided for in the initial advertisement. However, if no bids are received such bonds may be sold at not less than par value, without further advertising, within 60 days after the bids are required to be filed pursuant to any advertisement.
     With respect to instruments for the payment of money issued under this Section either before, on, or after the effective date of Public Act 86-4, it is and always has been the intention of the General Assembly (i) that the Omnibus Bond Acts are and always have been supplementary grants of power to issue instruments in accordance with the Omnibus Bond Acts, regardless of any provision of this Article that may appear to be or to have been more restrictive than those Acts, (ii) that the provisions of this Section are not a limitation on the supplementary authority granted by the Omnibus Bond Acts, and (iii) that instruments issued under this Section within the supplementary authority granted by the Omnibus Bond Acts are not invalid because of any provision of this Article that may appear to be or to have been more restrictive than those Acts.