1. H E R R E N K N E C H T A G | U T I L I T Y T U N N E L L I N G | T R A F F I C T U N N E L L I N G PIPE EXPRESS ®. New method for environmetally-friendly and economic pipeline installation. Herrenknecht AG, May 16, 2013.

2. H E R R E N K N E C H T A G | U T I L I T Y T U N N E L L I N G | T R A F F I C T U N N E L L I N G Open-trench projects with special requirements: Environmentally sensitive areas Swampy areas with high groundwater level Areas with unstable ground conditions Areas with water-bearing layers HERRENKNECHT AG | PIPE EXPRESS.Page 2 PIPE EXPRESS ®. APPLICATION FIELDS. NEAR SURFACE PIPELINE INSTALLATION.

3. H E R R E N K N E C H T A G | U T I L I T Y T U N N E L L I N G | T R A F F I C T U N N E L L I N G Drive length: up to 2,000m Pipeline diameter: 32“- 60“ Overburden:0.5 – 2.5m Advance rates of up to:1.2m/min | 500 – 1,000m/day HERRENKNECHT AG | PIPE EXPRESS.Page 3 PIPE EXPRESS ®. APPLICATION FIELDS. PROJECT CONDITIONS.

4. H E R R E N K N E C H T A G | U T I L I T Y T U N N E L L I N G | T R A F F I C T U N N E L L I N G Operator vehicle Launch pit with Pipe Thruster Excavation unit HERRENKNECHT AG | PIPE EXPRESS.Page 4 PIPE EXPRESS ® TECHNOLOGY. COMPONENTS OF EQUIPMENT.

5. H E R R E N K N E C H T A G | U T I L I T Y T U N N E L L I N G | T R A F F I C T U N N E L L I N G HERRENKNECHT AG | PIPE EXPRESS.Page 5 Working under groundwater, no lowering of ground water table Simultaneous trenching and pipe laying Minimum impact on flora and fauna No components & cutting transport inside the pipeline No drilling fluid for transport of cuttings -> no separation plant necessary Less pipe-laying equipment needed on jobsite PIPE EXPRESS ® TECHNOLOGY. THE BENEFITS.