OSHA has cited Nemak USA Inc. – based in Sheboygan, Wisconsin – for exposing workers to metalworking fluids used on aluminum after three employees were diagnosed with occupational hypersensitivity pneumonitis, a debilitating lung disease. The company faces penalties of $26,520 for two serious health violations, the maximum penalty allowed by law.

OSHA initiated an inspection at the company’s automotive aluminum castings manufacturing facility in August 2018 after receiving a medical referral. OSHA cited the company for failing to protect the employees from exposure to airborne metalworking fluids during machining operations, and failing to evaluate respiratory hazards.