Platinum Equity, an investment firm, completed the acquisition of HarbisonWalker International, a supplier of refractory products and services in North America. Financial terms were not disclosed. "This is excellent news for our employees, customers, and communities. Platinum Equity supports our intent to continue driving HWI forward into an unprecedented new era of growth. Over the past several years in North America and throughout our global operations, we've built operational excellence, differentiated ourselves through our supply reliability, and delivered the deepest and widest offerings of refractory products and expertise. Our new owner is wholly aligned with our leadership team's vision to aggressively accelerate investments in our business. We are poised to capitalize on the momentum that our team of employees has built together," Carol Jackson, HarbisonWalker Chairman and CEO.