Jack Stack brings with him 44 years of manufacturing and leadership experience. He has co-authored two books on associate engagement and participation which have been used in businesses throughout the world. During his career, he has served on numerous business and community boards.

"I am pleased to see the company gain a director with Jack's capabilities," stated David Moore, President and Chief Executive Officer, "and I am sure that our employees will welcome his influence in the company."

John J. Ghirardelli, current chairman of the Nominating and Compensation Committee, was elected chairman of the board at a board meeting held on February 11, 2013.

Paul Mueller Company is a manufacturer of high quality stainless steel equipment used in over 100 countries worldwide on dairy farms and in wide varieties of industrial applications, including food, dairy, and beverage processing; pharmaceutical, biotechnological, and chemical processing; water distillation; heat transfer; heat recovery; HVAC; and process cooling.

This press release contains forward-looking statements that provide current expectations of future events based on certain assumptions. All statements regarding future performance growth, conditions, or developments are forward-looking statements. Actual future results may differ materially from those described in the forward-looking statements due to a variety of factors, including, but not limited to, the factors described on page 32 of the Company's 2011 Annual Report. The Company expressly disclaims any obligation or undertaking to update these forward-looking statements to reflect any future events or circumstances.

 CONTACT: David Moore 
 
         President & Chief Executive Officer 
 
         Springfield, Missouri 
 
         (417) 575-9000