Seddiq worked as an auditor and Strategy consultant in Arthur Andersen Casablanca before joining Lafarge Morocco 2000. There he held several positions including Control Manager, CEO Lafarge Gypsum Morocco, Purchasing & Logistics Director and Marketing & Strategy Director until he was
appointed the LafargeHolcim Head of Growth & Innovation for Middle East and Africa in 2015.
He is a member of the Nomination, Remuneration & Human Resource Committee, a director of Hima Cement Limited and Chair of the Board of Bamburi Special Products Limited, Binastore Limited & Lafarge Eco Systems Limited.
He was appointed to the Board and as Group Managing Director on 9 February 2018.