Ohio Rev. Code § 4303.05: A-4 permit.

Permit A-4 may be issued to a manufacturer to manufacture prepared highballs, cocktails, cordials, and other mixed drinks containing not less than four per cent of alcohol by volume and not more than twenty-one per cent of alcohol by volume, and to sell such products to wholesale and retail permit holders in sealed containers only under such rules as are adopted by the division of liquor control. The holder of such permit may import into the state spirituous liquor and wine only for blending or other manufacturing purposes under such rules as are prescribed by the division.

The holder of such permit may also purchase spirituous liquor for manufacturing and blending purposes from the holder of an A-3 permit issued by the division. The fee for an A-4 permit is three thousand nine hundred six dollars for each plant.