The $2.1 billion buyout proposal from Irish giant CRH for cement group Adbri was recommended by the target’s independent directors, adding to the rush of local building products companies set to disappear from the ASX.

After more than two months of due diligence, Adbri announced on Tuesday that it had entered into a scheme implementation deed for the $3.20-per-share offer from CRH, which is listed in New York and London.