Qanbar Dywidag Precast Concrete Company Limited (QDC) was formed in 1981 as a partnership between one of the leading business conglomerates in the Eastern Province, Al Ansari Holding Company (Abdul Razzaq Mohammed Qanbar Al Ansari & Sons) and one of the largest German general contractors and precast concrete manufacturers Dycherhoff & Widmann AG (DYWIDAG).
In January 2002 Al Ansari Holding Co became the sole owner of QDC and (DYWIDAG) remains as a Technical Partner.