Southwark Metal Manufacturing Co. has a new national sales manager.

The manufacturer of prefabricated sheet metal ducts and fittings has promoted Daniel Hirsch from his previous position as a regional sales manager.

A Southwark employee for 18 years, Hirsch was named Salesman of the Year in 2012.

“I look forward to working with Dan in his new role and have complete confidence that he will be very successful,” said Southwark President Bill Spiegel.