Aero Products Component Services Inc.

Donaldson Aerospace & Defense Group and Aero Products Component Services Announce Strategic Alliance

Chesterfield, Missouri and Show Low, Arizona – July 30, 2013 – Donaldson Aerospace & Defense group, a division of Donaldson Company, Inc., (NYSE: DCI) the industry leader in the design, development and manufacturing of high performance engine inlet barrier filtration systems, and Aero Products Component Services, a prominent global helicopter support company, today announced a strategic alliance to add further depth and resources to benefit Donaldson’s commercial customers globally. Through this newly established partnership, both companies seek to further strengthen the distribution and support of the Donaldson commercial-aftermarket IBF products, as well abridge the supply chain for commercial customers, allowing them to benefit from both time and cost savings.

In celebration of this partnership, for a limited time only, Aero Products is presenting an “exclusive promotional offer” for the Donaldson STC’d Bell 230 and 430 Inlet Barrier Filter Systems.

Donaldson Company, is leading worldwide provider of air and liquid filtration systems and
replacement parts. The acquisition of Aerospace Filtration Systems (AFS) in 2007, further
reinforced its industry leadership by adding new customers, as well as additional milestones
to the already impressive Donaldson legacy. A technology-driven company, Donaldson is
committed to satisfying its Customers’ needs. “This partnership will provide a valuable
additional resource for helicopter owners and operators throughout the world. A company that
shares our values and has built its reputation on providing personalized customer service, we
are pleased to welcome Aero Products as one of our valued partners.” said Eric Erickson,
General Manager, Donaldson Aerospace & Defense group, Greater St. Louis area.

Aero Products Component Services, established in 1986, specializes in helicopter parts and
accessory sales, as well as component overhauls and repairs. Since its humble beginning,
Aero Products has earned a renowned reputation for creating longstanding business
relationships with its customer base, which now spans 30 countries, on 6 continents. “With
the formation of this partnership, we join hands with the Donaldson Aerospace and Defense
group in providing an unwavering commitment to do what’s right for the customer every time.
In short, we aim to simplify both the purchasing and post-sales support by providing live
customer service, along with ample parts and consumable inventories,” said Ted Johnson,
President, Aero Products.

With an increasing helicopter operators’ appetite for products that extend the lifespan of
their equipment and deliver true Return On Investment (ROI), for many operators the
Donaldson IBF systems have quickly become a “must have item”.

Donaldson IBF systems are available for a growing family of helicopter models:
AgustaWestland, Boeing, Bell Helicopter, Eurocopter, MD Helicopters, and Sikorsky.

About Donaldson Aerospace & Defense Group

Donaldson’s Aerospace & Defense Group is a leading worldwide provider of filtration systems
for the aerospace and defense industry. Our filtration solutions protect fixed-wing aircraft,
rotorcraft, military ground vehicles, electronic equipment, space vehicles, missiles, military
shipboard systems and amphibious vehicles. We are committed to advancing filtration
technology and providing quality products and prompt customer service. Our group serves
customers from sales, engineering and manufacturing locations around the world. For more
information on Donaldson rotorcraft products, contact Donaldson Aerospace & Defense
Group (636) 300-5281 www.donaldsonrotorcraft.com.

About Aero Products Component Services

For nearly 3 decades, Aero Products has been providing spares and component
overhauls services, and is especially adept and equipped to provide sales and support
solutions for Legacy series aircraft as well as other current production models. Aero Products
Component Services is an FAA / EASA approved and accepted repair facility and Bell CSF
with more than 25 years accessory sales experience. Aero Products also maintains a
formidable / ready-to-ship inventory of high-demand parts, accessory and consignment
items. www.aeroproducts.com

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