Purchase and maintenance of automatic machines and IT equipment; printing, enveloping and multitasking services; supply of stationery items and advertising materials; water, electricity and fuels; cleaning and plant maintenance services; human surveillance; consultancy, audit, rating, dealing; outsourcing	of	back	office	services;	advertising;	insurance;	storage	and	shipping	of	office	 supplies; mail transportation and processing; renovation works, among others, .