Supreme Perlite Company
Since 1954, Supreme Perlite Company in Portland, Oregon has supplied the Pacific Northwest with highquality expanded perlite for various applications. The leading manufacturer of perlite products for
gardening, horticulture, construction & industry.
Supreme Perlite is a longtime member of the Perlite Institute, a worldwide association of perlite
expanders, miners and applicators. The Institute develops product standards, conducts studies on
various perlite-related subjects and facilitates discussions between members on product and processing
issues around the globe.
Supreme Perlite is committed to sustainability and evaluating the environmental impact of our industry.
Perlite itself offers numerous benefits for reaching environmental and sustainability goals.