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KOSTER American Corp. is proud to announce that Jenilee Lucero received the CSI President’s Certificate of Appreciation at the 2026 CSI Mid-Atlantic Region Conference (MARC26) in Norfolk, VA. The award recognizes her outstanding service, leadership, and dedication to the Construction Specifications Institute and the broader construction industry.
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KOSTER PRO Series: Practical Training & Insights for Better System Performance
Join KOSTER technical experts as they showcase and discuss proven KOSTER systems for waterproofing, moisture mitigation, and flooring. Each session delivers practical insights, application guidance, and best practices to help you specify, install, and build with confidence.See What’s Coming Up — and Secure Your Spot.
Trade fair announcement: Big 5 Construct Saudi | Saudi Arabia
Visit us at Big 5 Construct Saudi from 18 January to 21 January 2026 at the Riyadh Front Exhibition & Conference Center. You’ll find us at the German Pavilion, booth number 4B169.
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On November 27, the mayor of Aurich, Horst Feddermann, honored us with a visit. He had an in-depth discussion with Johann Köster and Dr. Dieter Köster about our company.
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KÖSTER at trade fairs in November
In November, we will be represented at two trade fairs in Germany.
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Successful participation in NordBau 2025
KÖSTER BAUCHEMIE was once again represented at NordBau in Neumünster from September 10 to 14 this year. The trade fair was very successful, attracting over 50,000 visitors, which was reflected in the large number of visitors to the KÖSTER stand. Our colleagues had their hands full and were involved in many intensive discussions.
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Video project with VCI Nord in Aurich
On July 22, we were visited by VCI Nord, the regional association of the Chemical Industry Association for Bremen, Hamburg, Lower Saxony, and Schleswig-Holstein.
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Managing Director of the Deutsche Bauchemie Visits KÖSTER
Yesterday, Ina Hundhausen, Managing Director of the association Deutsche Bauchemie, visited us in Aurich. The topics discussed during her visit included the development of small and medium-sized enterprises in the industry, current trends in economic policy, as well as construction chemicals and sustainability. Ina Hundhausen had the opportunity to gain insight into KÖSTER’s diverse activities and responsibilities across many countries around the world.
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International Symposium of KÖSTER BAUCHEMIE AG
Aurich, July 09, 2025 - Every three years, KÖSTER BAUCHEMIE AG organizes its International Symposium. This major three-day event kicked off today with around 80 participants from all over the world.
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New Photovoltaic System – KÖSTER Utilizes the Advantages of Renewable Energy
Recently, we installed a photovoltaic system on the roof of our liquid production facility. The roof, covered with KÖSTER TPO roofing membranes, was equipped with 104 modules.
We not only aim to look towards a sustainable future with our products, but also to take advantage of the benefits of renewable energy during production.
Suitable for large reprofiling and repair works, has excellent workability characteristics and adhesion to old and new mineral building substrates. KÖSTER Repair Mortar NC is characterized by high chemical and mechanical resistance and compressive strength. Fiber reinforced. Also suitable as substrate preparation for corrosion protection with KÖSTER PSM or KÖSTER Silicate Mortar, e. g. in industrial chimneys, sewer systems, or other concrete structures which are exposed to low pH environments.
