The investigation, which was conducted to determine whether undertakings and associations of undertakings operating in the market for construction chemicals in Türkiye violated Article 4 of the Act no 4054 on the Protection of Competition, has been concluded.

As a result of the discussion of the file by the Competition Board on 22.05.2025, it was decided that Article 4 of the Act no 4054 was violated by

• Mapei Yapı Kimyasalları İnşaat San. ve Tic. AŞ,

by fixing sale prices of resellers and engaging in vertical region and/or customer restriction, and

• Chyrso-Kat Katkı Malzemeleri San. ve Tic. AŞ,

by fixing sale prices of resellers, engaging in vertical region and/or customer restriction and imposing non-compete obligations on the buyers,

and therefore, administrative fines should be imposed on

• MAPEI at 31,332,351.95 TL, and
• CHRYSO at 11,418,569.29 TL.

At the same time, it was decided that there were no grounds for imposing administrative fines on

• Akkim Kimya San. ve Tic. AŞ,
• BASF Türk Kimya San. ve Tic. Ltd. Şti.,
• Egecrete Yapı Kimyasalları AŞ,
• Ekan Kimya San. ve Tic. AŞ,
• Fosroc Yapı Kimyasalları San. ve Tic. AŞ,
• İksa Beton ve Yapı Kimyasalları San. ve Tic. AŞ,
• Kalekim Lyksor Kimya San. AŞ,
• Kordsa Teknik Tekstil AŞ,
• Polisan Yapıkim Yapı Kimyasalları Sanayi AŞ,
• Polipropilen Elyaf San. ve Dış Tic. AŞ, and
• Yapıchem Kimya Sanayi AŞ,

since no findings were acquired to suggest that these undertakings violated Article 4 of the Act no 4054. It was also decided that there were no grounds for imposing administrative fines on the associations of undertakings under investigation, namely Concrete Admixtures Manufacturers Association (Beton ve Harç Kimyasal Katkı Maddeleri Üreticileri Derneği – KÜB) and Building Materials Manufacturers’ Federation (Yapı Ürünleri Üreticileri Federasyonu – YÜF), since  no findings were acquired to suggest that the associations of undertakings concerned violated Article 4 of the Act no 4054.

Within the framework of the investigation it was also decided that KÜB’s practices of collecting annual total output, total turnover, total export amount, total export value, total imported input amount and value, total imported final product amount and value, total employment and total capacity data and sharing it with KÜB members and YÜF in a consolidated form after waiting until the data is two to five months old, as well as collecting annual total output data broken down into subcategories in the concrete admixtures product group and sharing it with European Federation of Concrete Admixtures Associations in a consolidated form after waiting until the data is two to five months old,

• could not receive a negative clearance certificate under Article 8 of the Act no 4054,
• However, the practice in question could be granted individual exemption under Article 5 of the Act no 4054, provided that the data collection is conducted by an independent undertaking through a digital system with at least five members participating in the sharing of data.