Supply of precast concrete drainage products: civil investigation

The CMA is investigating suspected cartel arrangements in the supply of products to the construction industry under the Competition Act 1998.

Case reference: 50299

Case timetable

Date Action
October 2017 Decision taken to proceed with the investigation (further update by the end of March 2018)
June 2017 to March 2018 (estimate) Information gathering, including the issuance of formal or informal information requests, analysis and review of material
15 April 2016 Investigation opened

Case information

The investigation concerns suspected infringements of the Chapter I prohibition in the Competition Act 1998 (CA98) and/or of Article 101 of the Treaty on the Functioning of the European Union.

The CMA has not reached a view as to whether there is sufficient evidence of an infringement of competition law for it to issue a statement of objections to the parties under investigation and no assumption should be made at this stage that any infringement has occurred. Not all cases result in the CMA issuing a statement of objections.

The CMA also conducted a related criminal investigation into whether individuals had committed an offence under section 188 of the Enterprise Act 2002. The criminal investigation concluded in June 2017. Until then, progress of the CA98 investigation had been contingent on progress of the related criminal case.


Assistant project director

Padraig Sheerin (020 3738 6382,

Project directors

Deborah Wilkie (020 3738 6606,

Ruth Ashworth (020 3738 6848,

Senior responsible officer

Michael Grenfell (020 3738 6134,

Media enquiries

Any media enquiries should be directed to a member of our Press Office.

Published 18 April 2016
Last updated 2 November 2017 + show all updates
  1. Timetable updated.
  2. Timetable added.
  3. First published.