It is stated that preparatory work has been initiated for determining the unit prices of Construction and Installation for 2026, and that within the scope of these studies, the unit prices and definitions of Mechanical Installations will be updated. In this context, we would like to inform all our members about the following: The attached list containing the 2025 Mechanical Installation Unit Prices should be announced to your relevant members, and your price offers, along with your suggestions for the products included in the lists, should be processed into the attached excel file, excluding VAT and contractor profit, and with discounts applied, and sent to the following addresses by January 5, 2026: engin.yigit@csb.gov.tr, onur.koseoglu@csb.gov.tr, onder.yilmaz@csb.gov.tr.