Mackintosh merged with the Rowntree Confectionary Company in York, England in 1969.
Nestle purchased Rowntrees in 1988 and is the current owner of the brand.
Quality Street Chocolates
6,000 Quality Street sweets are produced per minute, a total of 67 million every week.
136,701 miles of foil are used per year to wrap the sweets; the equivalent distance of five times around the equator.
15 million tins of Quality Street were sold in 2010; enough sweets to stretch to the moon and back when placed end to end
In recent years, individual larger versions of the more popular chocolates have been manufactured and sold separately, as an extension to the brand.