1. Groupe Marais We build Tomorrow's networks

2. Key figures 49 years' experience Over 100 employees 40m€ turnover in 2009 30% of turnover generated abroad 30 000km of telecom and energy networks installed over 10 years in Europe, Africa, America, Asia and Oceania 5% of turnover invested in research and development every year Subsidiary in Algeria, Morocco, Tunisia, South Africa, Australia, Middle East, Malaysia 2

3. Key figures  2,500 km in West Africa (Gabon, Guinea, Sierra Leone, Mali, Burkina Faso)  6,000 km in the Maghreb (Morocco, Algeria, Tunisia, Libya)  3600 Km in Europe  1,500 km in South America (Colombia, Brazil, Ecuador)  4,800 km in Central America (Cuba, Mexico, Santo Domingo)  2,500 km in North America (Canada, USA)  500 km in the Middle East (Saudi Arabia, Yemen, Lebanon)  1000 km in South Africa  300 km in Australia 3

4. Marais technologies Experience and capabilities  Trenching  Cable laying  Backfilling Mechanical Laying 4

5. Marais technologies Experience and capabilities Flexibility 9 cm 60 cm 850- 1300 1,3 m 2,5 m 5

6. Key aims of Marais technologies 6 Continuous screening of the trench: the layer Keeps the geometrical features of the trench No material falling while the network is being laid No decompaction of the surrounding ground Quality of the trench bottom: the shoe The mechanical laying with the Marais wheel: Advantages against a traditional laying process Increase Work Quality

7. Key aims of Marais technologies 7 Laying quality of the network Constant depth; the wheel cuts both hard and soft materials Constant altimetry and planimetry during the laying of the network Compliance with the admissible bending radii all over the laying operation Compliance with the cover (constant load applied to the network) The mechanical laying with the Marais wheel: Advantages against a traditional laying process Increase Work Quality

8. Key aims of Marais technologies Constant and reduced width of the trench Constant metric construction cost Less materials to be excavated Less materials to be backfilled and compacted Reduced repair of the surface 8 The mechanical laying with the Marais wheel: Advantages against a traditional laying process Increase Work Quality

9. 9 Mechanical Laying Laying Box

10. Chain trenchers 10 Deep trenches Machines dedicated to wide trenches opening All machines have a conveyer Easy reuse of the excavated materials Same machine in soft and hard soils Could be adapted to mechanical laying Control of the quality of the trench

11. 11 Type of WheelCutting widthsCutting depthsType SMC 200280 to 480 mm1350 mm Wheel Mechanical Laying SMC 500280 to 500 mm1 550 mm Wheel Mechanical Laying SMC 500 C400 to 900 mm1 000 to 2 500 mm Chain SMC 700 C1 060 to 1 300 mm 2 000 to 2 500 mm Chain Average Output : 800 – 1000 meters per day

12. Groupe Marais The Marais Group remains at your disposal - thank you. www.samarais.com y.sevin@samarais.com