 After the closure of the Herculaneum primary lead smelting facility in 2013, the company altered its business model to focus on its mining and recycling operations.In 2016, citing falling prices and environmental regulations, Doe Run downsized its lead production by approximately 10 percent and eliminated 75 jobs in its Missouri facilities.In 2016, the company sold 18 acres of its former lead smelter site in Herculaneum to Riverview Commerce Park LLC for redevelopment as a commercial port.