# Taiheiyo Cement delays closing of Vulcan Materials ready-mix concrete acquisition

Taiheiyo Cement's subsidiary CalPortland Company changed the planned closing schedule for acquiring ready-mix concrete business assets from Vulcan Materials Company in California to the first half of 2026, due to a second request from the U.S. Department of Justice under the HSR Act.

- Type: Acquisition
- Announced: 2025-12-25
- Where: California, United States
- Status: announced
- Products: ready-mix concrete
- Sectors: [Construction Materials](https://endata.com/sectors/construction-materials.md)

## Companies

- [Vulcan Materials Company](https://endata.com/companies/21256.md) (target)
- [Taiheiyo Cement](https://endata.com/companies/32760.md) (acquirer)
- [CalPortland](https://endata.com/companies/38179.md) (acquirer)

## Sources

- [japanir.jp](https://japanir.jp/en/company/company-5233/ir/5233-20251225-01_wp_m_and_a_alliance/), 2025-12-25: "Due to receiving a second request for additional information as part of the review process under the Hart-Scott-Rodino Antitrust Improvements Act (HSR Act) by the U.S. Department of Justice, the planned closing date has been changed from December 2025 to the first half of calendar year 2026."

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Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.