On June 20, 2021, Suntar Environmental Techonology Co., LTD. (hereinafter referred to as "Santar") was invited to participate in the 20th anniversary celebration of the founding of SEM and the "innovation development forum", at which the signing ceremony of the strategic cooperation agreement between SEM and Santar was held. ProfessorYongmiao Hong , Dean of SEM, signed a strategic cooperation agreement with Ms. Xiaoxu Liu, Business Director of Santar on behalf of both parties. The two parties would cooperate in research on carbon neutralization, cleaner production and circular economic policies.