Stephen James Mitchell Yulex Corporation makes products from Guayule (Parthenium argentatum) a residual agricultural material.

[1] In 2008, the U.S. Food and Drug Administration (FDA) approved Yulex biorubber gloves for medical uses.

[2] In 2012, Yulex received a $6.9 million USDA-DoE grant as part of a research consortium.

Partnering with the Agricultural Research Service (ARS) and Cooper Tire, Yulex will research enhanced manufacturing processes, testing and utilization of guayule natural rubber as a strategic source of raw material in tires, and evaluate the remaining biomass of the guayule plant as a source of bio-fuel for the transportation industry, as well work on improving agronomic practices, developing genetic information and undertaking a lifecycle analysis.

[6] In 2013, Yulex formed a partnership with ENI's Versalis to expand the reach of guayule into European markets.