We are a leading worldwide developer, manufacturer and marketer of highly specialized polymer-based membranes used in separation and filtration processes.  Our products and technologies target specialized applications and markets that require the removal or separation of various materials from liquids, with such materials ranging in size from microscopic to those visible to the human eye.  We manage our operations under two business segments: energy storage and separations media.  The energy storage segment, which accounts for approximately two-thirds of our total sales, produces different types of membranes that function as separators in lead-acid batteries used in transportation and industrial applications and lithium batteries used in electronics applications.  The separations media segment, which accounts for approximately one-third of our total sales, produces membranes used in various healthcare and industrial applications, including hemodialysis, blood oxygenation, ultrapure water filtration, degasification and other specialty applications.

We serve our customers globally with strategically located manufacturing facilities in the major geographic markets of North America, Europe and Asia.  We have manufacturing facilities or sales offices in nine countries serving six continents.