H&V Announces Opening Of Mark Hollingsworth Global Technology Center In Suzhou, China On June 8, 2011

EAST WALPOLE, Mass. — June 7, 2011 — Hollingsworth & Vose is pleased to announce the opening of
the Mark Hollingsworth Global Technology Center at the company’s facility in Suzhou, China on June
8th, 2011. It is named for Mark Hollingsworth who was CEO of H&V from 1960 to 1983 and led
H&V’s development as a multinational leader in the areas of filtration media and battery
separators. This center represents a major investment in research and development by providing
advanced global testing and development capabilities of fibrous media and elements used within
filtration, separation, battery separator and other industrial specialty markets.

The opening will be marked by a commissioning ceremony attended by the CEO, Val
Hollingsworth, the Board of Directors of H&V and members of the Hollingsworth family. This
center will further strengthen H& V’s position as a global filtration industry leader by
enhancing our capability to deliver innovative products, and rapidly provide the highest level of
expertise and support to our customers both in the Asia Pacific region and globally.

The test center will be able to test filters in all filtration sectors including auto,
cleanroom, and HVAC, among others. “Setting up a production, R&D, and test center in Suzhou is
a commitment to our market development strategy in China and the Asia Pacific region” said CEO Val

June 15, 2011