Erdemir Spor Kulübü, also referred to as Erdemirspor or Erdemir Zonguldak, is a professional basketball team based in the city of Zonguldak in Turkey that plays in the Turkish Basketball League. The team was founded in 2000. Their home arena is the Erdemir Sport Hall with a capacity of 1,700 seats.

Ereğli Demir ve Çelik Fabrikaları T.A.Ş. is a Turkish steel producer. The name is a contraction of the Turkish language Ereğli Demir ve Çelik Fabrikaları, which means "Ereğli Iron and Steel Factories". Erdemir occupies the 43rd place among the largest steel companies in the world and is also involved in coal in Turkey.