The United States produced about 90.1 million tons of steel in 2017, a 4.3 percent increase over the previous year.
Great Lakes steel production, however, plunged to 594,000 tons of steel in the last full week of the year that ended Dec. 30, closing the door on 2017 with a steep drop of 7 percent.
Steel mills in the Great Lakes region made 639,000 tons of metal the previous week, according to the American Iron and Steel Institute. Most of the steel made in the Great Lakes region is produced in Lake and Porter counties in Northwest Indiana.
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