Guinness Ghana Breweries Limited (GGBL) is a Ghanaian brewery based at the Kaasi Industrial Area in Kumasi. The company, formed in 1991, is active in the beverage industry with its main activity being the manufacture and sale of beer, stout, malt drinks and their ancillary products. It also produces non-alcoholic liquors such as Malta Guinness and Amstel Malta. When production started at its inception, the company produced only the Guinness Foreign Extra Stout. GGBL is a subsidiary of the Amsterdam-based spirit manufacturer Diageo Highlands Holding BV