The exercise of the powers and authorities granted by this Subpart shall be in all respects for the benefit of the citizens of the state of Louisiana and for the promotion of their welfare, convenience and prosperity. Property of the corporation, whether immovable, personal, tangible or intangible, and the income, earnings and operations of the corporation, shall be exempt from all taxation, fees or assessments, or any other similar charges.
La. R.S. § 39:99.9