CEMEX UK MATERIALS LTDdevinedesign2019-02-22T16:13:07+00:00 Pant-y-Pwll Dwr Quarry, Pentre Halkyn, Holywell, Flintshire CH8 8HP Certificate Number: CP 00125 Location: HALKYN Products/Scope: Asphalt ISO9001/NHSS14