The AIM-traded firm said the acquisition, first announced on 4 June, marked the final stage of a three-part acquisition strategy outlined in November last year.

It said the acquisition involved Ovetill Investments, CRH's entity responsible for lime and limestone flour production in Poland, along with its associated distribution network and assets.

At 1116 BST, shares in SigmaRoc were down 0.69% at 71.5p.

Reporting by Josh White for Sharecast.com.