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  1. المسافر

    🏭 Kocaeli 2026: Ports, Industry and the Shift to Greener Production

    🏭 Kocaeli: the industrial powerhouse on Istanbul’s doorstep Kocaeli is one of Türkiye’s leading provinces for industry, foreign trade and maritime transport. Its strength comes from an interconnected network of industrial estates, refineries, vehicle factories, chemical and metal producers...
  2. المسافر

    🧭 Eastern Marmara in 2026: Kocaeli, Sakarya, Yalova and Bilecik in Numbers

    🧭 Eastern Marmara: the corridor connecting Istanbul and Anatolia This guide groups four closely connected provinces: Kocaeli, Sakarya, Yalova and Bilecik. Together they combine heavy industry, ports, railways, farming, thermal tourism and countryside. They are much more than places near...
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