2. OUR HISTORY 2

4. Electricity Infrastructures Renewable

5. Energies Infrastructures

6. Consulting In each of these areas we intend to cover up the value chain in order to ensure our customers all the levels of satisfaction and quality they require. Thus, we guarantee the best final result of the implemented solutions.

8. Mobile - Deployment and maintenance of radio stations, BSC and MSC for TMN and Vodafone - Proef Group has the responsibility, on an turn-key solution, of radio planning, licensing, civil works, energy, installation and commissioning. We also have the responsibility for preventive and corrective maintenance on Mobile Network.

9. Drop Client FTTH - Fiber Network - Set up and service commissioning of fiber client to Portugal Telecom and Vodafone.

10. Unitel Angola and Vodacom Mozambique - We are responsible for all activity deployment of GSM/UMTS stations. Our business ranges from the provision of infrastructure by placing the service, the logistics and real state tasks that are guaranteed. Mobile NGN Wireline

14. Advising – we have a senior team prepared to advise you on decision making, business and contract management;

15. Consultancy – our team counts with senior elements prepared to help on the daily basis activity of your organization;

16. Engineering – we are able to work with you on network design, test performance, definition of QoS parameters, reports definition, RFP production, identify the best solution and equipment for you;

17. Outsourcing – we have experience in task and teams outsourcing, this will allow you to optimize your organization in terms of budget and operations;