SAN JOSE — A Japan-based cement company whose corporate maneuvers drew the scrutiny of the U.S. Justice Department has bought several San Jose properties as part of a mega-deal in the concrete materials business.
Taiheiyo Cement Corp. of Tokyo, as part of a $712 million deal for the California ready-mix assets of Vulcan Materials Co. and its franchises such as Central Concrete Supply Co., now owns an array of sites, including concrete plants, in San Jose.
Central Concrete Supply site at 889 Stockton Street in the Rose Garden area of San Jose, seen in March 2026. (Google Maps)
CalPortland Co., a Nevada-based unit of Taiheiyo Cement, has paid $19.9 million to buy properties owned by Central Concrete Supply in San Jose, according to documents filed on June 8 with the Santa Clara County Recorder’s Office.
The just-bought sites include a Central Concrete plant at 457 Queens Lane and another cement plant at 889 Stockton Avenue, the county property files show. Other properties near the corner of Stockton Avenue and Hedding Street are also among the purchased sites, according to the county documents.
“This acquisition enables CalPortland Co. to enter the San Francisco Bay area in Northern California, a new region previously not accessed by its ready-mix business, while also strengthening its business foundation in existing operating areas in Southern California,” Taiheiyo stated on June 8.
The antitrust division of the Justice Department, however, demanded that Taiheiyo and CalPortland sell three ready-mix concrete assets that the companies bought from the owner of Central Concrete Supply.
The three sites that federal antitrust officials demand that Taiheiyo and CalPortland divest are in San Diego County and don’t affect the purchase of the San Jose properties.
The Northern California sites that the Taiheiyo Cement unit has bought will help Taiheiyo and CalPortland capitalize on the artificial intelligence-fueled expansion of the Bay Area tech sector.
“The Central Concrete/Vulcan assets bring CalPortland expanded opportunities in artificial intelligence-driven data center developments and attendant power infrastructure build-out,” Taiheiyo stated.