What was the iron producing capital of kush?

The iron-producing capital of Kush was Meroë. Located along the Nile River in present-day Sudan, Meroë became a significant center for iron production and trade during the Kingdom of Kush, particularly from the 3rd century BCE to the 4th century CE. The city is known for its numerous iron smelting furnaces and its role in the development of Metallurgy in ancient Africa. Meroë's strategic location and rich Natural Resources contributed to its prominence in the region.