Cement companies Holcim and Lafarge said they have reached a binding agreement under which Ireland's CRH will buy some of their assets for €6.5 billion.
The deal, which will transform the Irish company into the world's third-biggest building materials supplier, was announced in February.
It includes assets in Europe, Canada, Brazil and the Philippines.
The divestment deal, which was cleared by EU competition regulators last month, was a condition for France's Lafarge and Switzerland's Holcim to merge.
CRH said today that the acquisition remains conditional upon successful completion of the merger of Lafarge and Holcim as well as the completion of local asset reorganisations.
The acquisition is expected to complete in the second half of this year, it added.
CRH shares closed 3.1% higher in Dublin trade today.
Meanwhile, Swiss cement maker Holcim and French merger partner Lafarge said they had finalised the make-up of the future 10-member executive committee of the combined LafargeHolcim.
The companies confirmed that Holcim's chief financial officer Thomas Aebischer would be in charge of finance for the group.
Lafarge Morocco head Saad Sebbar will lead the Middle East and Africa region, while Lafarge France head Pascal Casanova will be in charge of Latin America, the companies said in a joint statement.
The appointments mean each company will have five executives on the combined committee, to be led by Lafarge's Eric Olsen as chief executive.
