EXIT OF IMERYS FROM PERGEM Thursday, December 22, 2022 IPM ATTENDED THE 31ST CHINA (XINYANG) PERLITE INTERNATIONAL CONFERENCE Thursday, December 26, 2019 A change in our corporate structure Monday, July 2, 2018 Shifting our headquarters Thursday, May 17, 2018 Our new reserve KY1 ! Monday, October 10, 2016 2015 Barcelona Meeting of Perlite Institute Monday, November 30, 2015 Visit of members of China Perlite Association Monday, November 2, 2015 27. International China (Nanchang) Perlite Conference Tuesday, October 6, 2015 SLAGPERL Tuesday, October 6, 2015 New, Micronized Perlite Investment Tuesday, October 21, 2014