The iron industry involves the production and processing of iron, a key metal used in various applications, including construction and manufacturing. It primarily focuses on extracting iron from ores, such as hematite and magnetite, through processes like smelting. The resulting product, pig iron, can be further refined to create steel, which is stronger and more versatile. Historically, the iron industry has played a crucial role in industrialization, particularly during the Industrial Revolution. Major regions for iron production include China, India, and Brazil, which are among the largest producers globally. The industry continues to evolve with advancements in technology and sustainability practices.