Paul Mueller Company Signs Agreement to Acquire Licensee

SPRINGFIELD, Mo., April 10, 2008 (PRIME NEWSWIRE) -- On April 10, 2008, Paul
Mueller Company (Mueller) (Pink Sheets:MUEL) executed a definitive Share
Purchase Agreement with Rollbas B.V. to purchase all of the outstanding shares
of Paltrok Beheer B.V., a wholly owned subsidiary of Rollbas. Paltrok has been
the European licensee of Mueller since 1988 for the manufacture and the sale of
dairy farm milk coolers using Mueller designs and trademarks. In addition to
milk coolers, products fabricated at the facility include processing equipment,
beverage equipment, and heat transfer equipment. Paltrok's manufacturing
facility is located in Lichtenvoorde, the Netherlands, and is on the site
previously occupied by Mueller Europa B.V., a former wholly owned subsidiary of
Mueller.

The purchase price consists of EUR 8,300,000 ($12,948,000), plus an additional
contingent amount of EUR 4,700,000 ($7,300,000) to be paid from, as defined,
cash flows of Paltrok over a period of up to seven years.

The transaction is scheduled to close April 18, 2008. Paltrok has approximately
100 employees, and sales for the year of 2007 were about $26,300,000, and net
income for the year was about $2,400,000.

Mueller is one of the leading manufacturers of processing systems and has
invested extensively in equipment and personnel to expand its product and
service capability, with a focus on providing customers with a complete project
solution. The Company has about 1,000,000 square feet of manufacturing space
with more than 1,200 employees. The Company has qualified and experienced
employees in product development, engineering, and manufacturing, and it
produces stainless steel systems designed to meet the highest quality standards
for a wide variety of industrial applications, including food, dairy, and
beverage processing; pharmaceutical, biotechnological, and chemical processing;
heat transfer and heat recovery; HVAC; and thermal energy storage and cooling
applications on dairy farms worldwide.

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 28 of the Company's
2007 Annual Report. The Company expressly disclaims any obligation or
undertaking to update these forward-looking statements to reflect any future
events or circumstances.

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CONTACT: Paul Mueller Company
Donald E. Golik, Executive Vice President & CFO
(417) 831-3000