Gulf Perlite USA, Inc.

Konstantin Mitsiou February 2, 2024

Agrekal HaBonim Industries

David Bar Yosef August 28, 2023

Mon Perlite, LLC

Bayartsogt Battogtokh December 20, 2022

King Caster Perlite Company

Marcy Chen January 3, 2022

Nor Cal Perlite, Inc. South – Bakersfield, CA

Justin Clarke March 29, 2021

Alternativa LLC, Krasnodar, Russia

Andrey Krukov February 26, 2021

JSC “Soltera”

Dainius Spirikavicius March 3, 2020

Alternativa LLC, Novosibirsk, Russia

Andrey Krukov February 28, 2020

Alternativa LLC, Tolyatti, Russia

Andrey Krukov February 28, 2020

Silbrico Corporation – East

Steve Garnett December 27, 2019

Silbrico Corporation

Steve Garnett December 27, 2019

DP Minerals International

Bernard Pugeat August 26, 2019

Omya International AG

David GonzalezAmago August 2, 2019

Alternativa LLC

Andrey Krukov July 24, 2019

Procema Perlit S.R.L.

Claudiu Somacescu September 18, 2018

Caspian Perlite

Habibollah Jamshidi September 18, 2018

Pratley (Pty) Ltd.

Cecile Ferreira September 13, 2018

ACCIMIN SA DE CV

Pablo Rauh Hain June 8, 2018

PERLIPOL

Witold Derlatka May 24, 2018

Perlite Canada, Inc., Saint-Pacome

Richard Barabe May 4, 2018

Saudi Perlite Ind.

Eng. Fahad Almojel February 28, 2018

Pull Rhenen b.v.

René van der Mark February 28, 2018

Perlit-92 Kft.

Dr. Geza Farkas February 28, 2018

Nor Cal Perlite, Inc.

Justin Clarke February 28, 2018