No. Mediation is only mandatory in consumer complaints under Section 1, Rule III of Department Administrative Order No. 02, series of 2020. Further, mediation is defined as an intervention by which DTI, through its appointed or designated mediation officers, facilitates communication and negotiation between the parties, and assists them in reaching a voluntary settlement of their dispute. Thus, since DTI is the complainant in a Formal Charge, it cannot intervene in the case.