TXI
TXI is a United States construction-materials business, formerly known as Texas Industries, focused primarily on cement, aggregates, and concrete-related products in the Southwest.
Last updated August 26, 2026
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Overview
TXI is the operating name associated with TXI Operations LP, formerly Texas Industries, a construction-materials company serving the southwestern United States. Its principal activities have centered on the manufacture and supply of cement, aggregates, and other materials used in infrastructure, commercial construction, residential development, and industrial applications. Its cement portfolio has included Portland cement, masonry cement, and oil-well cement, while its aggregates and concrete-related products have supported the broader building and civil-construction markets. The company was established in 1946 and developed around the large and growing construction economies of Texas and neighboring states. Its production network expanded substantially over time. By 2012, Texas Industries owned 82 manufacturing facilities across six states, reflecting a vertically and geographically diversified position in regional construction materials. The business was particularly associated with cement production and large-scale manufacturing assets, including its Midlothian, Texas, cement plant south of Dallas. When constructed, the Midlothian facility was described as the largest cement plant in the United States. TXI also had interests beyond cement. Its historical portfolio included aggregates and related concrete products, and it was connected with Chaparral Steel, a major steel producer located next to the Midlothian cement operation. Chaparral Steel was later separated from TXI and acquired by Gerdau in 2007. That transaction marked the departure of a significant steel asset from the broader Texas Industries portfolio and underscored the company’s historical relationship with multiple heavy-materials segments. The company reached a notable scale in the 1990s. In 1994, it reported annual revenue of $614 million and appeared at number 500 on the Fortune 500 revenue ranking. This period reflected the importance of regional construction-materials suppliers capable of operating large plants and distribution networks close to major building markets. TXI’s independent corporate history ended through its acquisition by Martin Marietta Materials. In January 2014, Martin Marietta agreed to acquire TXI in an all-stock transaction valued at approximately $2.06 billion. The proposed combination was intended to create a larger construction-materials business operating under the Martin Marietta name, with approximately 7,000 employees and headquarters in Raleigh, North Carolina. The transaction was completed on July 2, 2014, when TXI became a wholly owned subsidiary of Martin Marietta Materials. Following the acquisition, TXI no longer operated as an independently listed public company. The TXI name remains associated with the acquired operating organization and its assets, while strategic control, corporate reporting, and group identity sit with Martin Marietta. The company is headquartered in Dallas, Texas, and its historical market emphasis remains the production and distribution of heavy construction materials in the southwestern United States.
History
TXI was founded in 1946 as Texas Industries and grew into a major regional supplier of heavy construction materials. Its development was closely tied to the expansion of Texas and other southwestern U.S. markets, where population growth, transportation investment, commercial construction, and industrial activity created sustained demand for cement, aggregates, and concrete-related materials. The company built its business around manufacturing assets rather than a consumer-facing product identity. Cement became the central part of its portfolio, including Portland cement for general construction, masonry cement for building applications, and oil-well cement for petroleum-related construction. Aggregates and other concrete-related products broadened its participation in roadbuilding, infrastructure, commercial development, and residential construction. TXI expanded its production and distribution footprint over several decades. By 2012, the company owned 82 manufacturing facilities in six states. Its most prominent facility was the cement plant at Midlothian, Texas, south of Dallas. The plant was described as the largest cement plant in the country when it was built and became a defining asset of the company’s Texas operations. TXI’s regional scale allowed it to serve markets where transportation costs and proximity to quarries and cement plants are important competitive factors. The company also had a historical presence in steel through Chaparral Steel. Chaparral’s plant stood next to TXI’s Midlothian cement facility and became a significant North American producer of structural steel beams and steel bar products. Chaparral was spun off from TXI and subsequently purchased by Gerdau in 2007 for a reported $4.2 billion. The divestiture separated a major steel operation from TXI’s remaining construction-materials business. TXI’s financial and corporate scale was recognized in the 1990s. In 1994, the company recorded annual revenue of $614 million and ranked 500th on the Fortune 500 revenue list. Its position reflected the importance of large regional materials producers in the American construction economy and the capital-intensive nature of cement and aggregate manufacturing. A major corporate transition began in January 2014, when Martin Marietta Materials agreed to acquire TXI in an all-stock transaction valued at approximately $2.06 billion. The planned combination brought together two construction-materials companies and was expected to operate under the Martin Marietta name, with roughly 7,000 employees and headquarters in Raleigh, North Carolina. The transaction was completed on July 2, 2014. TXI became a wholly owned subsidiary of Martin Marietta Materials, and its independent public-company identity ended. Today, TXI is best understood as an operating subsidiary and historical business identity within the Martin Marietta group rather than as a separately listed company. Its corporate headquarters are in Dallas, Texas, and its business legacy is concentrated in cement, aggregates, and related heavy construction materials serving the southwestern United States.
- 2014
Martin Marietta announces TXI acquisition
[1]Martin Marietta Materials agrees to acquire TXI in an all-stock transaction valued at approximately $2.06 billion.
- 2014
TXI becomes a Martin Marietta subsidiary
[1]The acquisition closes on July 2, making TXI a wholly owned subsidiary of Martin Marietta Materials.
- 2012
Manufacturing network reaches 82 facilities
[1]TXI is reported to own 82 manufacturing facilities across six states, illustrating the scale of its regional operating network.
- 2007
Chaparral Steel is acquired by Gerdau
[1]Chaparral Steel, which had been spun off from TXI, is acquired by Gerdau.
- 1994
TXI reaches Fortune 500 ranking
[1]With reported annual revenue of $614 million, Texas Industries ranks 500th on the Fortune 500 revenue list.
- 1946
Texas Industries is founded
[1]Texas Industries, the company later known as TXI, is established in the United States.
Products and positioning
A regional heavy construction-materials supplier built around cement manufacturing, aggregates, and related products for infrastructure and building markets in the southwestern United States.
Cement
Portland cement
Portland cement was a core TXI product and served as a general-purpose binder for concrete used in buildings, roads, bridges, foundations, and other infrastructure. Its production was supported by large-scale cement plants, including the major Midlothian facility in Texas. The product placed TXI in the capital-intensive portion of the construction-materials industry, where manufacturing capacity, quarry access, logistics, and proximity to regional markets are important.
Cement
Masonry cement
Masonry cement was supplied for masonry construction and related building work. It formed part of TXI’s specialized cement range alongside Portland and oil-well cements, allowing the company to serve contractors and construction-materials distributors with products suited to distinct building applications.
Cement
Oil-well cement
Oil-well cement was part of TXI’s product portfolio for petroleum-well construction and related industrial uses. This line connected the company’s cement-manufacturing capabilities with the energy-producing regions of the southwestern United States, although the available reference material does not specify individual grades, brands, or current product availability.
Construction aggregates
Aggregates
TXI produced aggregates used in concrete, road construction, foundations, and other civil-engineering applications. Aggregates complemented the company’s cement and concrete-related operations and helped it participate across multiple stages of regional construction-materials supply.
Concrete materials
Concrete-related products
In addition to cement and aggregates, TXI participated in other concrete-related product categories. These offerings supported construction contractors and infrastructure projects in the Southwest, although the supplied reference does not identify a complete product catalog or individual product names.
Brand decisions
2014
Agree to acquisition by Martin Marietta MaterialsM&ABackground
TXI and Martin Marietta operated in overlapping construction-materials markets, and Martin Marietta sought to combine the businesses into a larger national construction-materials group.
Action taken
TXI agreed to an all-stock acquisition by Martin Marietta Materials valued at approximately $2.06 billion. The combined company was planned to operate under the Martin Marietta name.
Aftermath
The transaction closed on July 2, 2014. TXI became a wholly owned subsidiary, lost its independent listed-company status, and remained associated with Martin Marietta’s operations in the Southwest.
Transaction value. $2.06 billion (Announced January 2014; completed July 2, 2014)
Recent events
- 2014
Martin Marietta agrees to acquire TXI[1]
M&A
Martin Marietta Materials agreed to purchase TXI in an all-stock transaction valued at approximately $2.06 billion, combining two major construction-materials providers.
- 2014
TXI becomes a wholly owned Martin Marietta subsidiary[1]
M&A
The acquisition was completed on July 2, 2014, ending TXI's status as an independent public company and placing its operations under Martin Marietta Materials.
- 2007
Chaparral Steel is sold to Gerdau[1]
M&A
Chaparral Steel, historically associated with TXI and located near its Midlothian cement plant, was acquired by Gerdau in a transaction reported at approximately $4.2 billion.
Sources1 sources
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