[Salt lease statutes excepted.]

There is expressly excepted from the provisions of this act [19-8-4 to 19-8-7 NMSA 1978], chloride of sodium, usually called and known as common salt, and this act shall not be construed as modifying, altering, repealing or in any wise changing the existing statutes relating to the leasing of state lands for the production of chloride of sodium, or common salt.