Mallesons has assisted Heidelberg Materials to obtain Australian Competition and Consumer Commission (ACCC) clearance for its acquisition of Maas Group Holdings Limited’s construction materials business.
On 31 July 2026, the ACCC announced its decision to approve the acquisition, subject to conditions requiring Heidelberg Materials to divest three ready-mix concrete plants and a quarry across Queensland and New South Wales.
The determination is the first Phase 1 approval with conditions under the new mandatory ACCC merger control regime.
The Mallesons Competition team was led by Partners Lisa Huett and Jennifer Barron, supported by Senior Associate Joe McQuillen and Solicitor Ricky Aggarwal.
Commenting on the clearance, Lisa Huett said:
“Under Australia’s new merger regime, early and evidence-led engagement with the ACCC is critical. This determination demonstrates that with this sort of engagement, it is possible to efficiently navigate the new regime and avoid a more extensive Phase 2 review, even where remedies are required to secure ACCC clearance.”
The ACCC clearance follows Mallesons’ work advising Heidelberg Materials on the acquisition, led by the firm’s Corporate and M&A practice.
