Oct 5 (Reuters) - Ash Grove Cement Co

* Ash Grove cement company provides updates regarding pending acquisition by crh plc


* Received preliminary, non-binding competing proposal from third party to buy co at indicated enterprise value of $3.7 billion-$3.8 billion​

* Board of directors of Ash Grove has determined that such proposal could reasonably be expected to result in a superior proposal​


* Special meeting for vote on merger agreement with CRH Plc set for November 1, 2017​ Source text for Eikon: Further company coverage: