The Green Diamond Story
In 1961 the founders of Green Diamond looked upon a discarded 20-million ton mountain of nickel slag and saw not waste, but opportunity.
What began as a vision to repurpose discarded material evolved into a thriving business dedicated to innovation and sustainability.
Green Diamond started by producing construction grits and abrasive blast media. As technology advanced, so did our refining processes, leading to the development of new products and expanded applications. By the mid-1990s, Green Diamond had established itself as a leader in abrasive blast media, foundry products, roofing materials, and specialty aggregates. While these remain the foundation of our business, we continue to find new markets and applications for our high-quality reserves.
Our Mission
Our mission is to create the best products using the industry’s most advanced technology while continuing to single source from our high grade magnesium orthosilicate reserve located in Riddle, Oregon.
Today
Green Diamond Performance Materials has grown into a global presence, serving industries both domestically and internationally. With three production facilities and headquarters in Riddle, we’ve expanded far beyond our humble beginnings of just three employees. Today, we’re proud to employ over 80+ dedicated team members and remain an integral part of the community where it all started.
Our journey is one of continuous innovation, sustainability, and a commitment to delivering the best materials for our customers—yesterday, today, and into the future.
