TARIFF CONCESSION ORDER Under Section 269P of the Customs Act 1901, I, Paul Mercer, a delegate of the Chief Executive Officer declare that the goods specified in Column 1 of THE TABLE are goods to which the item in Part III of Schedule 4 to the Customs Tariff Act 1995 specified in Column 2 of THE TABLE applies. This Order shall have effect from 21.02.08 and continue in force until revoked under sections 269SC or 269SD of the Act, or the date, if any, specified in Column 2. THE TABLE COLUMN 1 COLUMN 2 Description of Goods including the Schedule 4 Item Number Last date of effect Customs Tariff Classification 8474.31.00 PLANT, GROUT MIXING, comprising ALL of the following: 50 (a) automatic mixing unit comprising: (i) mixer; (ii) agitator; (iii) air compressor; (iv) stabiliser pump; (v) water pump; (vi) water tank; (vii) stabiliser tank; (viii) accelerator tank; (ix) control panel, programmable logic controlled being integrated and operated by tunnel boring machine; (x) mixer, agitator and tank level sensors (b) cement silo comprising: (i) horizontal silo with twin screw conveyor feed; (ii) reverse pulse dust filters; (iii) vibrators; (iv) level detection device (c) bentonite silo comprising: (i) bag splitter; (ii) screw conveyor (d) transfer system comprising: (i) transfer pumps; (ii) pressure gauges with switch; (iii) cleanup ball charge device (e) tunnel boring machine grouting equipment comprising: (i) injection pumps; (ii) pressure gauges with switch; (iii) transfer pumps; (iv) pressure sensors, programmable logic controlled, being integrated and operated by tunnel boring machine; (v) flowmeters, programmable logic controlled being integrated and operated by tunnel boring machine; (vi) cleanup ball catcher; (vii) mixing nozzle; (viii) touch screen control panel; (ix) on/off grouting control; (x) electrical AND/OR communication cables (Continued on next page) This is page 1 of 2 Pages of the above Table. ..Paul Mercer ...................... Dated 16 May 2008 Delegate of the Chief Executive Officer THE TABLE Description of Goods including the Schedule 4 Item Number. Last date of effect Customs Tariff Classification (Continued from previous page) (f) foam grout generator unit comprising: (i) air flow meter; (ii) foam generator; (iii) foam flow meter; (iv) grout AND/OR foam mixing nozzle; (v) operation panel, programmable logic controlled being integrated and operated by tunnel boring machine Op. 21.02.08 - TC 0802908 This is page 2 of 2 Pages of the above Table. ..Paul Mercer ...................... Dated 16 May 2008 Delegate of the Chief Executive Officer