Owner Tetra Tech Acquisition Pty Ltd ACN/ ARBN 152 082 972

Service Proteus Engineers Group Pty Ltd PO Box 7537 Cloisters Square PERTH WA 6850

Filing Date 16 August 2010

Class 37 Advisory services relating to the construction of civil engineering structures; advisory services relating to the construction of mechanical engineering structures; advisory services relating to the repair of civil engineering structures; advisory services relating to the repair of mechanical engineering structures; civil engineering; civil engineering consultancy; construction engineering; electrical engineering services (construction); mechanical engineering services (construction); project preparation relating to civil engineering; project preparation relating to construction engineering; structural engineering services (construction); advisory services relating to construction; advisory services relating to property development building and construction services; advisory services relating to the construction of buildings; building and construction services; building construction; building construction advisory services; building construction consultancy; building construction supervision; building consultancy services; building project management; building project management (building construction supervision); construction; construction consultation; construction information; on-site construction supervision; provision of information in relation to building construction; supervision of building construction; supervision of construction; supervision of construction projects

Class 42 Advisory services relating to architecture; advisory services relating to building design; advisory services relating to industrial engineering; architecture; architectural consultation; architectural project management; building and structural inspection services (engineering, quality assessment, and surveying services); building design services; building inspection services (surveying); civil engineering (design); civil engineering design services; civil engineering drawing services; design engineering; engineering; engineering consultancy; engineering design; engineering drawing; engineering feasibility studies; engineering project management services; engineering project studies; engineering research; engineering services relating to architecture; engineering surveys and inspections; engineering testing; industrial engineering design services; mechanical engineering services (design); preparation of engineering drawings; preparation of engineering reports; provision of engineering reports; provision of engineers; provision of information relating to industrial engineering; technical engineering; commissioning (testing and inspection) services; construction drafting; design consultancy (with respect to engineering); design of feasability studies; design services (with respect to engineering); drawing of plans; electrical engineering services (design); industrial design; industrial inspection; preparation of architectural reports; preparation of blueprints; preparation of drawings; preparation of reports relating to design (with respect to engineering); preparation of technical reports; preparation of technical studies; preparation of technological reports; project management (design); preparation of technical studies; preparation of technological reports; provision of information relating to industrial design; technical drawing services; technical project studies; design services relating to civil engineering; structural engineering services (design)