The Proterial Group has established the "Proterial Group Sustainable Procurement Guidelines" in order to promote and implement sustainable procurement thoroughly. We organized the policies and initiatives related to sustainability of the Proterial Group and posted in the "Proterial Group Supplier Code of Conduct", which we would like our procurement partners to comply with. We believe the promotion of business activities with an emphasis on sustainability will lead to mutual prosperity with our procurement partners. We would appreciate your understanding and support.

January, 2023
Proterial, Ltd.
Procurement Division