(1) For the purposes of this section:

     (a) "Chlor-alkali electrolytic processing business" means a person who is engaged in a business that uses more than ten average megawatts of electricity per month in a chlor-alkali electrolytic process to split the electrochemical bonds of sodium chloride and water to make chlorine and sodium hydroxide. A "chlor-alkali electrolytic processing business" does not include direct service industrial customers or their subsidiaries that contract for the purchase of power from the Bonneville power administration as of June 10, 2004.

     (b) "Sodium chlorate electrolytic processing business" means a person who is engaged in a business that uses more than ten average megawatts of electricity per month in a sodium chlorate electrolytic process to split the electrochemical bonds of sodium chloride and water to make sodium chlorate and hydrogen. A "sodium chlorate electrolytic processing business" does not include direct service industrial customers or their subsidiaries that contract for the purchase of power from the Bonneville power administration as of June 10, 2004.

     (2) Effective July 1, 2004, the tax levied under this chapter does not apply to sales of electricity made by a light and power business to a chlor-alkali electrolytic processing business or a sodium chlorate electrolytic processing business for the electrolytic process if the contract for sale of electricity to the business contains the following terms:

     (a) The electricity to be used in the electrolytic process is separately metered from the electricity used for general operations of the business;

     (b) The price charged for the electricity used in the electrolytic process will be reduced by an amount equal to the tax exemption available to the light and power business under this section; and

     (c) Disallowance of all or part of the exemption under this section is a breach of contract and the damages to be paid by the chlor-alkali electrolytic processing business or the sodium chlorate electrolytic processing business are the amount of the tax exemption disallowed.

     (3) The exemption provided for in this section does not apply to amounts received from the remarketing or resale of electricity originally obtained by contract for the electrolytic process.

     (4) In order to claim an exemption under this section, the chlor-alkali electrolytic processing business or the sodium chlorate electrolytic processing business must provide the light and power business with an exemption certificate in a form and manner prescribed by the department.

     (5)(a) This section does not apply to sales of electricity made after December 31, 2010.

     (b) This section expires June 30, 2011.

[2004 c 240 § 1.]