J&R Tennent was acquired by Charrington United Breweries in 1963, and in 1966 formally merged with United Caledonian Breweries, Charrington's other Scottish subsidiary, to form Tennent Caledonian Breweries. The new company's brewing was concentrated at the Wellpark Brewery and the Heriot Brewery in Edinburgh. Wellpark was redeveloped between 1965 and 1968 but Heriot was demolished in the 1990s. In 1967, Charringtons merged with Bass to form the Bass Charrington Group. It was later bought by the Belgian brewer Interbrew (now InBev) in June 2000, which became part of Anheuser-Busch InBev in 2008.