48 grant incentives to investors in the autonomous region in addition to those provided by the Regional Government. SEC. 4. Regional Economic Zone Authority; Freeports. – The Regional Government may establish a regional economic zone authority in the autonomous region. The Regional Economic Zone Authority shall have similar powers as the Philippine Economic Zone Authority and consistent with the Special Economic Zone Act of 1995. The Regional Assembly may provide such additional powers and functions to the Regional Economic Zone Authority as may be necessary to meet the special circumstances of the autonomous region. Once the Regional Economic Zone Authority is created by a Regional Assembly legislation, the Philippine Export Zone Authority shall no longer authorize any other economic zone within the autonomous region. Any corporation, firm, or entity established within the autonomous region, by authority of the Philippine Export Zone Authority, shall be placed under the jurisdiction of the Regional Economic Zone Authority and shall continue to enjoy the benefits granted to it by the Philippine Export Zone Authority. SEC. 5. Use, Development of Mines, Minerals, and Other Natural Resources; Revenue Sharing; Exceptions. – (a) Regional Supervision and Control. The control and supervision over the exploration, utilization, development, and protection of the mines and minerals and other natural resources within the autonomous region are hereby vested in the Regional Government in accordance with the Constitution and the pertinent provisions of this Organic Act except for the strategic minerals such as uranium, petroleum, and other fossil fuels, mineral oils, all sources of potential energy, as well as national reserves and aquatic parks, forest and watershed reservations already delimited by authority of the central government or national government and those that may be defined by an Act of Congress within one (1) year from the effectivity of this Organic Act. (b) Sharing Between Central Government or National Government and Regional Government in Strategic Minerals Revenues, Taxes, or Fees. Fifty percent (50%) of the revenues, taxes, or fees derived from the use and development of the strategic