(a) Credit allowable. -- The amount of annual credit allowable under this article to an eligible taxpayer shall be $250 for each new job at a new value-added aluminum or polymer product manufacturing facility located in this state, or at a new value-added aluminum or polymer product line of an existing manufacturing facility located in this state, that is filled by a full-time employee of the eligible taxpayer during the taxable year, subject to the following:

(1) When the new value-added aluminum or polymer product manufacturing facility, or the new aluminum or polymer product line of an existing value-added aluminum or polymer product manufacturing facility, is in operation for less than twelve months of the taxable year in which it is placed in service, the credit allowed by subsection (a) of this section shall be prorated by the ratio that the number of months in the taxpayer's taxable year during which the new value-added aluminum or polymer product facility, or the new products line of an existing value-added aluminum or polymer product manufacturing facility, was in service bears to twelve;

(2) When the eligible taxpayer stops manufacturing value-added aluminum or polymer products at the new value-added aluminum product manufacturing facility, or at the new aluminum or polymer product line of an existing value-added aluminum or polymer product manufacturing facility, during the taxable year, the credit allowed by subsection (a) of this section shall be prorated by the ratio that the number of months in the taxpayer's taxable year during which the new value-added aluminum or polymer product facility, or the new products line of an existing value-added aluminum or polymer product manufacturing facility, was in operation manufacturing value-added aluminum or polymer products bears to twelve;

(3) When determining the number of full-time employees who fill new jobs at the new value-added aluminum or polymer product manufacturing facility located in this state, or who fill new jobs at a new value-added aluminum or polymer product line of an existing manufacturing facility located in this state, the eligible taxpayer shall not include any position occupied by any employee of the eligible taxpayer, or of a related person, which existed in this state as of the first day of the second calendar month preceding the calendar month in which the new value-added aluminum or polymer product manufacturing facility, or a new value-added aluminum or polymer product line at an existing value-added aluminum or polymer products manufacturing facility first becomes operational, whether such positions are filled by permanent, seasonal, temporary or part-time employees;

(4) The amount of credit allowable each taxable year shall be calculated annually based upon the number of new jobs filled by full-time employees during the taxable year: Provided, That the credit provided for in this article may only be taken one time for each new job created, and once claimed in a tax year for a new job the credit may not be claimed in a subsequent year for that position.

(b) Expiration of credit. -- This credit shall expire on July 1, 2002. When July 1, in the year 2002 falls during the taxable year of the eligible taxpayer, the amount of credit allowable for that taxable year shall be limited to that portion of the amount of credit that would have been allowable had the credit not expired multiplied by the ratio the number of months during taxpayers taxable year ending before July 1, 2002, bears to twelve.