In Cementos Argos, relations with shareholders and investors are handled by the Investor Relation Office. Please find as follows the contact information in order to address any questions or concerns you may have: Shareholders' Service Center - Fiduciaria Bancolombia caa@bancolombia.com.co Medellín: (574) 444 7231 Bogotá: (571) 742 1576 Rest of the country: (+57) 01 8000 954 242 Select subject Tax certificate Stock buy/sell order Dividend pay out Company's general information Others Accept terms and conditions Submit IR Contact ir@argos.com.co Investor Relations Officer Manuela Ramírez mramirezm@argos.com.co (574) 3198457 Carrera 43A # 1A Sur 143 Torre Norte-Medellín Investor Relations Director Catalina Ricaurte cricaurte@argos.com.co (574) 3198700 Ext #4729 Carrera 43A # 1A Sur 143 Torre Norte-Medellín