Justice Department Requires Taiheiyo Cement Corporation and CalPortland Company to Divest Assets to Proceed with Acquisition of Ready-Mix Concrete Assets from Vulcan Materials Company

What happened

According to U.S. Department of Justice’s source item, Justice Department Requires Taiheiyo Cement Corporation and CalPortland Company to Divest Assets to Proceed with Acquisition of Ready-Mix Concrete Assets from Vulcan Materials Company, The Justice Department’s Antitrust Division announced today that it will require Taiheiyo Cement Corporation and its subsidiary CalPortland Company to divest three ready-mix concrete plants along with related assets to address antitrust concerns arising from CalPortland’s proposed $712 million acquisition of ready-mix concrete assets from Vulcan Materials Company.

Context

The development sits in VINI’s Technology file for readers following technology, science, product policy, markets, infrastructure, and the public consequences of innovation. The original report is linked so readers can check the source account, follow later updates, and compare new coverage against the first published record. The source item is dated 2026-05-21T12:00:00+00:00.

What to watch

Open questions include whether primary sources issue follow-up statements, whether local or market impacts become clearer, and whether additional reporting changes the timeline or adds material context.

Source

Primary source: Justice Department Requires Taiheiyo Cement Corporation and CalPortland Company to Divest Assets to Proceed with Acquisition of Ready-Mix Concrete Assets from Vulcan Materials Company via U.S. Department of Justice. VINI cites and links the source; it does not reproduce the publisher’s full article text without rights clearance.