U.S. Steel announced Wednesday that $100 million will go toward upgrading its Edgar Thomson Plant in Braddock, part of $300 million in investments that also include upgrades at the company’s Gary Works in Indiana.

The investments are a portion of Nippon Steel’s $11 billion commitment to upgrading U.S. Steel facilities — part of its overall $14.9 billion acquisition of the Downtown Pittsburgh-based steelmaker.

U.S. Steel said the investment for the Edgar Thomson Plant will be used for a new slag recycler, a machine that can make use of the byproducts of steel production, including providing ingredients for cement.

“This is an opportunity to reduce air emissions and waste that would have otherwise gone to a landfill, while also generating additional revenue through the sale of byproducts,

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