The Undersecretariat Of The Ministry Of Mining Requires Contracting The Comprehensive Cleaning And Maintenance Service, With The Provision Of Supplies And Equipment, For The Offices Of Its Regional Ministerial Secretariat Of Mining Of The Arica And Parinacota Region, Located At Avda. Comandante San Martin 146 , 5Th Floor, Arica, For A Period Of 12 Months.