Marmaris Altinyunus Turistik Tesisler A.S. is a Turkey-based tourism and hospitality company primarily engaged in the development, ownership, operation, and commercial leasing of hotel and leisure properties. Founded in 1986 and headquartered in Antalya, Turkey, the company operates as a subsidiary of Koc Holding A.S. Marmaris Altinyunus Turistik Tesisler A.S. offers a comprehensive range of hospitality and leisure solutions, comprising upscale and resort hotel accommodations; food and beverage services, including fine-dining restaurants, cafes, bars, and catering; banquet, conference, and convention hosting facilities; health, spa, and wellness treatments; leisure and sports amenities, including private beach facilities, outdoor swimming pools, and water sports; and commercial real estate leasing and hospitality asset management. The company's core asset portfolio centers on Mares Hotel, a beachfront five-star resort complex situated in Marmaris, Mugla, and the Divan Talya Hotel property located in Muratpasa, Antalya. In recent major corporate developments, the company has undertaken a comprehensive multi-billion Turkish Lira redevelopment project to completely reconstruct the Divan Talya Hotel and convention facilities in Antalya into a premier luxury hotel managed under the Divan brand, increasing its investment incentive certificate to approximately TRY 2.7 billion to support enhanced capacity and modern infrastructure. Furthermore, the company restructured its long-term operational lease arrangements for Mares Hotel in Marmaris, completing the transfer and assignment of the facility lease to TatilBudur Seyahat Acenteligi ve Turizm A.S. through 2035, securing upfront assignment consideration and long-term revenue-linked rental income streams.