The Turkish Competition Board initiated an investigation on 17 ready-mixed concrete producers operating in Ankara and Kırıkkale to determine whether they had infringed Article 4 of the Turkish Competition Act prohibiting anti-competitive agreements. The press release dated 30.12.2022 about the investigation, initiated by the decision of the Turkish Competition Board, dated 08.12.2022 and numbered 22-54/828-M, is available via https://www.rekabet.gov.tr/tr/Guncel/ankara-ve-kirikkale-illerinde-faaliyet-g-987e08074f88ed11a23100505685ee05