On October 29, 2019, Gu Yan, chairman of the Group,and Liu Yajun, deputy general manager and chairman assistant of the Group were invited to attend China Non-metallic Mineral Industry Conference 2019.

On the conference, Chairman Gu Yan made a keynote speech entitled "strategic thinking on the sustainable development of enterprise", elaborating the strategic thinking of Matrass on the whole industrial chain planning and sustainable development of Dawudian graphite deposit, which was totally accepted and widely concerned by the industry.

Keynote Speech by Chairman of the Group, Gu Yan