RMC Group
Corporate brand
UnclaimedFormer British building-materials group specializing in ready-mixed concrete, aggregates, cement and concrete products.
Last updated August 31, 2026
Overview
RMC Group was a British building-materials company whose principal businesses were ready-mixed concrete, quarrying, aggregates and concrete products. The company originated as Ready Mixed Concrete Limited, founded in 1930 at Bedfont by Danish civil engineer Kjeld Ammentorp. It developed around the production and distribution of ready-mixed concrete for construction projects and later expanded into associated raw materials, cement, builders' supplies and other construction-related activities. The business changed materially during the post-war period. In 1952, Ready Mixed Concrete of Australia reversed into its British rival, helping create a broader corporate platform and supporting further international expansion. RMC subsequently became a public company and was first listed on the London Stock Exchange in 1962. Its operations grew through a combination of organic development, acquisitions, quarrying assets and overseas subsidiaries, eventually making it one of the larger international building-materials groups. RMC also became notable for the redevelopment of a former quarry into Thorpe Park in Surrey. The company developed the leisure park at Staines during the late 1970s, using land whose quarrying activity had ended. RMC operated Thorpe Park until 1998, when it sold the attraction to The Tussauds Group, the leisure business associated with Alton Towers and Chessington World of Adventures. The disposal illustrated the group's willingness to monetize non-core assets while concentrating more closely on construction materials. During the 1990s, RMC pursued expansion across Europe. It established a land-purchase joint venture with Isle of Man Assurance in 1990 and later sought greater control over its German operations, announcing in 1995 that it would acquire the remaining minority interest for £356 million. It also participated in a competitive attempt to acquire Midlands-based aggregates company Ennemix, although Lafarge ultimately became the successful bidder. The period was marked by cyclical demand, particularly in road construction and the German market, but RMC continued to pursue strategic growth. Regulatory and market changes also broadened the company's activities. New legislation affecting aggregates businesses required RMC and other British operators to develop waste-management and recycling capabilities. The group considered expansion into India and held discussions concerning the possible acquisition of Scancem AB, though Heidelberg Materials eventually prevailed in that transaction. In 1998, RMC sold its Hall & Co builders' merchant chain to Wolseley for £121 million, another step toward focusing on core materials operations. A major turning point came in 2000, when RMC acquired British cement producer Rugby Group for £850 million. The transaction was expected to generate annual savings of approximately £30 million and strengthened RMC's position across cement and related construction materials. That year, Peter Young was replaced as chief executive by Stuart Walker. RMC remained exposed to construction cycles and regional downturns, but its scale and integrated portfolio made it an important international participant in concrete, aggregates and cement. In 2005, Cemex acquired RMC Group for £2.3 billion. The transaction brought RMC into the Mexican multinational's global building-materials business and was described as creating the world's third-largest cement producer at the time, behind Lafarge and Holcim. RMC ceased to operate as an independent listed group after the acquisition. Its assets and businesses were absorbed into Cemex, making RMC primarily a historical corporate brand rather than an active standalone company.
History
RMC Group began in 1930 as Ready Mixed Concrete Limited, established at Bedfont by Danish civil engineer Kjeld Ammentorp. Its initial specialization was ready-mixed concrete, a product whose centralized batching and delivery model supported large-scale building and infrastructure work. The company later expanded beyond concrete into aggregates, quarrying and associated construction products. A significant corporate development occurred in 1952, when Ready Mixed Concrete of Australia reversed into the British company. This transaction helped provide a platform for wider expansion and international development. RMC became publicly traded in 1962 through its first listing on the London Stock Exchange. Over time, it developed into a diversified materials group with operations and subsidiaries in several countries. One of the group's unusual projects was Thorpe Park in Surrey. In 1979, RMC developed the leisure park at Staines by redeveloping a disused quarry after quarrying operations had ended. RMC operated the attraction until 1998, when it sold the business to The Tussauds Group. The disposal was consistent with a broader effort to concentrate on construction-materials activities rather than retain non-core leisure assets. RMC's main strategic direction during the 1990s was international and vertical expansion. In December 1990 it formed a joint venture with Isle of Man Assurance for land purchases. In 1995 it announced plans to acquire the remaining 36 percent of its German subsidiary for £356 million, giving it full control. In 1996, it unsuccessfully competed with Lafarge for Ennemix, a Midlands aggregates company. The group also faced cyclical pressure: demand weakened in some markets, including road-related work in the United Kingdom and the German construction market later in the decade. Changes in British regulation required aggregates companies to develop waste-management and recycling activities, encouraging RMC to broaden its service portfolio. The company reported strong results in 1997 and considered launching a concrete operation in India. It also explored the possible acquisition of Scancem AB in 1999, but Heidelberg Materials ultimately secured that business. In 1998 RMC sold Hall & Co, its builders' merchant chain, to Wolseley for £121 million. The most important acquisition in RMC's later history was Rugby Group, a British cement producer purchased in 2000 for £850 million. RMC stated that the transaction could produce roughly £30 million in annual savings and deepen its position across the cement and concrete value chain. In the same year, chief executive Peter Young was replaced by Stuart Walker. RMC ended as an independent company after Cemex acquired it in 2005 for £2.3 billion. The combination substantially increased Cemex's international scale and was characterized at the time as creating the world's third-largest cement producer, behind Lafarge and Holcim. Following the takeover, RMC's assets were integrated into Cemex and the RMC Group ceased to exist as an independent listed corporate group.
- 2005
Cemex acquires RMC Group
[1]Cemex bought RMC Group for £2.3 billion, ending its independent corporate existence.
- 2000
Rugby Group is acquired
[1]RMC acquired Rugby Group for £850 million, strengthening its cement operations.
- 1998
Hall & Co is sold
[1]RMC sold its builders' merchant chain Hall & Co to Wolseley for £121 million.
- 1995
Full control of German subsidiary pursued
[1]RMC announced a £356 million purchase of the remaining 36 percent of its German subsidiary.
- 1990
Land-purchase joint venture established
[1]RMC formed a joint venture with Isle of Man Assurance to undertake land purchases.
- 1979
Thorpe Park is developed
[1]RMC redeveloped a disused quarry at Staines into the Thorpe Park leisure attraction.
- 1962
First London Stock Exchange listing
[1]The company became publicly listed on the London Stock Exchange.
- 1952
Australian company reverses into the British business
[1]Ready Mixed Concrete of Australia reversed into its British rival, supporting the group's subsequent expansion.
- 1930
Ready Mixed Concrete is founded
[1]Kjeld Ammentorp founded Ready Mixed Concrete Limited at Bedfont in England.
Products and positioning
An integrated construction-materials group combining ready-mixed concrete, aggregates, quarrying, cement and related construction-product operations, with an emphasis on scale, vertical integration and international expansion.
Concrete · 1930
Ready-mixed concrete
RMC's foundational product was concrete batched at a plant and transported to construction sites for placement. The business grew from this specialization into a broader materials portfolio serving building, infrastructure and civil-engineering projects.
Aggregates
Aggregates and quarry products
The group operated quarries and supplied aggregates used in concrete, roads and other construction applications. Aggregates became a major part of RMC's vertically integrated materials strategy and its European expansion.
Cement · 2000
Cement
RMC strengthened its cement presence through the 2000 acquisition of Rugby Group, a British cement producer. This gave the company a more complete position spanning cement, aggregates and ready-mixed concrete.
Concrete products
Concrete products
RMC also operated in concrete products and related construction materials, complementing its core ready-mixed concrete and quarrying activities.
Brand decisions
2005
Cemex takeoverM&ABackground
RMC had developed into a large international building-materials group, while Cemex was pursuing greater global scale.
Action taken
Cemex acquired RMC Group for £2.3 billion.
Aftermath
RMC ceased to operate as an independent listed company and its businesses were integrated into Cemex. The combination was described as creating the world's third-largest cement producer at the time.
Acquisition consideration. £2.3 billion (2005)
- Lafarge
- Holcim
2000
Acquisition of Rugby GroupM&ABackground
RMC sought to reinforce its position across the construction-materials value chain and increase its cement capacity.
Action taken
RMC acquired British cement producer Rugby Group for £850 million.
Aftermath
The acquisition was expected to deliver approximately £30 million in annual savings and expanded RMC's integrated cement and concrete platform.
Acquisition consideration. £850 million (2000)
1998
Sale of Hall & CoM&ABackground
RMC operated Hall & Co as a builders' merchant chain while increasingly concentrating on core construction materials.
Action taken
The group sold Hall & Co to Wolseley for £121 million.
Aftermath
The transaction removed a non-core retail and merchanting business from RMC's portfolio.
Sale consideration. £121 million (1998)
1996
RMC implements a price increase during weak demandPrice changeBackground
The company faced a downturn in demand, partly associated with reduced road-related work, but sought to protect its commercial performance.
Action taken
RMC successfully introduced a price increase in its market.
Aftermath
The increase was reported as successful despite the difficult demand environment.
Recent events
- 2005
Cemex agrees to acquire RMC Group[1]
M&A
Cemex acquired RMC Group for £2.3 billion, ending RMC's independent existence as a listed building-materials company.
- 2000
RMC completes acquisition of Rugby Group[1]
M&A
RMC acquired British cement producer Rugby Group for £850 million. The deal was expected to produce annual savings of about £30 million.
- 1998
RMC sells Hall & Co builders' merchant chain to Wolseley[1]
M&A
RMC Group disposed of its Hall & Co builders' merchant chain in a sale to Wolseley for £121 million, supporting a greater focus on construction materials.
Sources1 sources
Cite this profile: Cite the canonical profile. /brand-wiki/rmc-group · Editorial policy · How profiles are compiled