Complex sentence: The Barrow Hematite Steel Company Limited was a major iron and steel producer based in Barrow-in-Furness, United Kingdom between 1859 and 1963, at the turn of the 20th-century it operated the largest steelworks in the world.
Split into simpler sentences: The Barrow Hematite Steel Company Limited was a major iron and steel producer based in Barrow-in-Furness, England, between 1859 and 1963. At the turn of the 20th-century it operated the largest steelworks in the world.