1. 09 July 2015 1 EHN1 civil engineering project status (JUNE) Summary: Updating of the activities carried out on-site (Done) in JUNE List activities on going (Next steps) and scheduled for JULY Final consideration Extension of Building 887 - 24th EHN1 Extension Integration Meeting N.Lopez – M.Manfredi

2. (1) MICRO PILES Vertical & inclined drilling along TT85: (100% completed) EHN1 civil engineering project status (JUNE) Crown beam execution: (100% completed). Done (1/4): 09 July 2015 2 Extension of Building 887 - 24th EHN1 Extension Integration Meeting N.Lopez – M.Manfredi

3. (2) DIAPHRAGM WALLS -73 panels- Execution EAST side: (91% completed) EHN1 civil engineering project status (JUNE) Execution SOUTH/WEST side: (50% completed) Done (2/4): 09 July 2015 3 Guide walls allowing DW excavation: (87% completed) Execution NORTH/WEST side: (100% completed) ~79% TOTAL PANELS EAST N/W S/W Extension of Building 887 - 24th EHN1 Extension Integration Meeting N.Lopez – M.Manfredi

4. Done (3/4): (3) TECHNICAL GALLERY -70 meters- EHN1 civil engineering project status (JUNE) Earthworks: (100% completed). After excavation of Type 3 portion Execution TG: (35% completed). Type 3 portion started Backfilling: (25% completed). Type 2, facing TT85 enlargement 09 July 2015 4 Extension of Building 887 - 24th EHN1 Extension Integration Meeting N.Lopez – M.Manfredi

5. Done (4/4): (4) PITS EXECUTION EHN1 civil engineering project status (JUNE) Crown beam execution: (0% completed). Excavation first ties level: (0% completed). 09 July 2015 5 Excavation head DW level: (15% completed). Started with the East side Excavation second ties level: (0% completed). Only for certain DW panels …Others First ties level execution: (0% completed). -step by step- Task in “cohabitation” with the DWs last panels execution!! Extension of Building 887 - 24th EHN1 Extension Integration Meeting N.Lopez – M.Manfredi

6. Next Steps: Activities scheduled for July (2) DW: Prepare new lower guide walls close to EHN1 allowing panels excavation. Whole panels completion within end-July (3) TG: Advancement on Type 3 portion. Work site preparation for Type 1 execution (4) PITS: Excavation/Execution crown beam + Excavation/Execution for ties installation  East side portion EHN1 civil engineering project status (JUNE) 09 July 2015 6 02/07/2015 Extension of Building 887 - 24th EHN1 Extension Integration Meeting N.Lopez – M.Manfredi

7. Final Consideration: -New long-term schedule received updated with the current on-site situation. -The compatibility/duration of the upcoming tasks will be assessed. -CE tasks have to be carried out in parallel. Execution of the two pits launched before DWs panels completion to avoid further delays. -Likely (but too early to say) CE first phase completion while metallic contractor are already on-site. Risky, but feasible thanks to the Consortium. -CE Handover unchanged for the moment (Jul-2016) -Next status of the works end-July. EHN1 civil engineering project status (JUNE) 09 July 2015 7 Extension of Building 887 - 24th EHN1 Extension Integration Meeting N.Lopez – M.Manfredi