KORO ALÜMİNYUM builds on more than 43 years of industry experience with a renewed, collaborative, and disciplined management approach focused on sustainable growth. The company invests strongly in R&D and innovation, working closely with universities, technoparks, and professional consultants to advance its technological capabilities. Its production facilities are designed with an environmentally responsible mindset, generating their own energy and water support while adhering to advanced waste management principles. Committed to quality, efficiency, and customer trust, Koro Alüminyum operates with an environmentally conscious, people-oriented production philosophy under independent audit oversight.

GÖKSU is a leading manufacturer in the automatic door industry, serving residential, industrial, and commercial facilities with nearly 40 years of experience and a broad product portfolio. Operating under the GOXU brand, the company manufactures in three factories located in Istanbul Dudullu OSB and Ankara Sincan OSB, supported by a widespread domestic and international dealer network. With strong in-house manufacturing capabilities and a proprietary ERP system coordinating supply, production, sales, and after-sales services, the company delivers high value-added, reliable solutions to global markets.

Founded 25 years ago as a family business in Kütahya, our company has grown to 350 employees and established a respected presence in its sector. We prioritize innovation, technology adoption, and customer satisfaction while maintaining a management approach that respects people, nature, and national values. By fully integrating with the business processes of national and international partners, we deliver reliable, fast, and cost-effective solutions. Our ongoing commitment is to provide exceptional service and support to meet the evolving needs of our clients.

Güral Alüminyum specializes in the design and production of architectural aluminum systems including curtain walls, joinery systems, composite panels, and fire-resistant solutions. With a strong focus on innovation and quality, the company provides reliable façade and cladding solutions for modern construction projects. Güral Alüminyum supports its clients with tailored, durable, and aesthetic systems that meet international standards.

DİMAK is a leading manufacturer of advanced door systems, specializing in fire-rated doors, industrial doors, garage doors, and stainless steel doors. With internationally certified production (EN 1634-1, ISO 9001), the company provides safe, durable, and compliant solutions for commercial, industrial, and residential projects. DİMAK combines modern technology, high-quality materials, and expert engineering to deliver products that meet stringent safety and performance standards. Operating globally, the company continues to grow as a reliable partner in architectural and building solutions.

Vetropan specializes in the design and manufacturing of decorative PVC and aluminum door panels, as well as fused glass elements for modern architectural applications. Combining aesthetics with durability, the company offers stylish and functional solutions for residential and commercial doors. With advanced production technologies and a focus on quality, Vetropan delivers customized panel designs that meet both visual and structural standards. Vetropan is a brand of Meltek Bilişim Otomotiv Turizm Ticaret A.Ş.

Grup Cam Ltd. is a specialized manufacturer of insulating glass units, operating since 1993 with a steadily growing production capacity and advanced technology infrastructure. As an authorized ISICAM producer, the company delivers CE-certified and ISO 9001:2008-compliant glass products with up to 10 years warranty. Its modern facility in the Anadolu Organized Industrial Zone covers 5,300 m² and houses fully automated, computer-controlled production lines. Grup Cam continues to serve the construction and glazing industries with high-performance, durable, and energy-efficient glass solutions.