PRESS RELEASE

Zyvex announces first Certified Nanotube Supplier

Richardson, Texas (June 25, 2004)

Zyvex today announced that SouthWest NanoTechnologies, Inc. (SWeNT™) of Norman, Oklahoma has successfully met the requirements of the Zyvex Supply Chain Certification program. Zyvexs comprehensive program verifies quality and batch-to-batch consistency using market-accepted analytical tests.

SWeNTs Single Wall Carbon Nanotubes (SWNTs), made with its patented CoMoCat™ process, can now be incorporated into Zyvexs NanoSolve™ additive products, especially for polymer composite applications.

“Our customers demand quality products. As such, we must demand quality raw materials for our NanoSolve products,” said Zyvex President Thomas A. Cellucci. “SouthWest NanoTechnologies has demonstrated their robust, scalable manufacturing technology with its documented and controlled processes. They also have a proper order fulfillment system and sound capital planning and sources.”

“We are excited about working with a nanotechnology leader like Zyvex,” said Howard Barnett, CEO of Southwest Nanotechnology, Inc. “We believe partnerships like this are key to speeding market adoption of carbon nanotube-based materials.”

SWeNT is the first company to be certified under this program. Zyvex is working with a number of other leading nanotube vendors and will announce additional vendors as they become certified throughout the remainder of 2004.

The Supply Chain Certification process is an integral part of Zyvexs ability to provide high-quality nanomaterials solutions for customer applications.

About the Companies

Zyvex Corporation, based in Richardson, Texas, is the first molecular nanotechnology company. Zyvexs vision is to be the leading worldwide supplier of tools, products, and services that enable adaptable, affordable, and molecularly precise manufacturing. Zyvex commercializes nanotechnology to address real-world applications with high-growth potential. Zyvex carries its scientific breakthroughs into key commercial applications in the area of materials, tools, and structures.

SouthWest NanoTechnologies, Inc. (SWeNT™) is commercializing a horizontal patented technology to supply Single-Wall Carbon Nanotubes for high-volume high value applications as well as developing enhanced functionality to its nanotubes for specialty applications. This enabling technology has application in a variety of industries and materials. The company was incorporated in April 2001 to spin off nanotube technology developed by the University of Oklahoma and ConocoPhillips. For more information, please visit www.swnano.com.

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