Lincoln Electric Holdings Inc. promoted Daniel E. McMillin, Jr. to vice president, corporate controller. McMillin will be responsible for overseeing global finance functions and financial reporting. The company also promoted Robert A. Nelson to vice president, finance for the Americas Welding segment, filling previous McMillin’s role. Nelson will be responsible for leading the regional finance and accounting operations and will support the development of businesses within the segment. McMillin joined Lincoln Electric in 2004 and Nelson has been with the company since 1998.