Ala. Code § 40-12-87
Every person operating a cottonseed oil mill; cotton mill; cloth mill; towel factory; garment factory; yarn mill; hosiery mill; peanut mill; peanut oil mill; peanut shelling plant; paper mill; pulp mill; mill manufacturing sheeting, rugs, bags, hats, cement, carpets, lime, plaster, soap, chemical, acid (other than fertilizer) explosive; and all mills manufacturing any finished or semifinished products of tobacco, thread, yarn, cloth, fur, felt, nylon, paper, jute, rubber, iron, iron ore, copper, brass, tin, coal, coke, sand, cement, glass, clay, slag, aluminum, bauxite, ore, grain, other than what is commonly called a grist mill, oats, corn, rye, synthetic rubber, stone, oil, crude oil, tar, resin, asphalt, paraffin, plastics, fibers, straw, cellulose, or other factory where materials are woven, made, or assembled shall pay the following license tax: $10 where the investment for plant, equipment, supplies, and fixtures is less than $15,000; $20 where the investment for plant, equipment, supplies, and fixtures is $15,000 and less than $25,000; $30 where the investment for plant, equipment, supplies, and fixtures is $25,000 and less than $50,000; $50 where the investment for plant, equipment, supplies, and fixtures is $50,000 and less than $100,000; $100 where the investment for plant, equipment, supplies, and fixtures is $100,000 and less than $500,000; $150 where the investment for plant, equipment, supplies, and fixtures is $500,000 and less than $1,000,000; $200 where the investment for plant, equipment, supplies, and fixtures is $1,000,000 and over. Such investment shall be the total capital employed in such plant, and the person applying for such license shall furnish a sworn statement showing the amount of the investment and shall accompany the same with a statement taken from the books of the company, showing the amount of such investment, and such books shall at all times be subject to the inspection of the Department of Revenue or its agents. The license taxes levied under this section shall not apply where the factory, mill, or plant which would be licensed by this section is covered by a specific license under this article.
Ala. Code § 40-12-87 (1975)