AngloAmerican Investor Presentation Deck

Elements of Herrenknecht Hard Rock TBM 1 Cutterhead Rotation & high contact pressure to break the rock and drop cuttings into the buckets 2 Buckets Buckets pick up excavated material via cutterhead, and rotation conveys excavated material through ducts to machine belt conveyor 3 Machine belt conveyor Conveys excavated material out of TBM to main conveyor Anglo American 1 2 3 4 6 5 4 Thrust cylinder Hydraulic cylinders arranged around circumference push the TBM forward into the rockface ahead 5 Tunnel lining Lining of the tunnel tube with precise, prefabricated reinforced steel segments 6 Erector Remotely controlled movable vacuum manipulator for handling the segments during ring building 21

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