It was listed on the London Stock Exchange and was once a constituent of the FTSE 100 Index, but was acquired by Cemex of Mexico in 2005.

The Company was founded by Kjeld Ammentorp in 1930 in Bedfont as Ready Mixed Concrete Limited.

[1] In 1952, Ready Mixed Concrete of Australia reversed into its UK rival and began to expand.

The company operated Thorpe Park until 1998, when they sold the park to The Tussauds Group, owner of Alton Towers and nearby Chessington World of Adventures.

[2] The company acquired Rugby Group, a leading British cement business, in 2000.