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| | Jun.2003 | Jun.2004 | Jun.2005 |
| Table 84. VALUE OF DEMONSTRATED SUBSOIL ASSETS, By commodity | | | |
| - as at 30 June(a) | | | |
|
ANTIMONY |
|
|
|
| Economic demonstrated resource(Kt)(b) | 82.5 | 86.5 | 93 |
| 5 year lagged moving average of prices at 30 June($/t) | 2658 | 2872 | 3355 |
| Cost including normal return on capital($/t)(c) | 1956 | 0 | 0 |
| Annual production(Kt) | 1.2 | 0 | 0 |
| 5 year lagged moving average of production(Kt) | 1.5 | 1.2 | .9 |
| 5 year lagged moving average of resource life(Years) | 55.2 | 74.7 | 108.6 |
| Net present value of assets($m)(d) | 15 | 49 | 42 |
| BAUXITE | | | |
| Economic demonstrated resource(Gt)(b) | 5.6 | 5.8 | 5.8 |
| 5 year lagged moving average of prices at 30 June($/t) | 33 | 32.8 | 32.7 |
| Cost including normal return on capital($/t)(c) | 28.1 | 27.9 | 29.5 |
| Annual production(Gt) | .1 | .1 | .1 |
| 5 year lagged moving average of production(Gt) | .1 | .1 | .1 |
| 5 year lagged moving average of resource life(Years) | 107.5 | 106.3 | 104.7 |
| Net present value of assets($m)(d) | 3810 | 3958 | 2664 |
| BLACK COAL-RECOVERABLE | | | |
| Economic demonstrated resource(Gt)(b) | 39.4 | 39.8 | 39.2 |
| 5 year lagged moving average of prices at 30 June($/t) | 55.1 | 57.3 | 63.9 |
| Cost including normal return on capital($/t)(c) | 44.1 | 45.9 | 51.1 |
| Annual production(Gt) | .3 | .3 | .3 |
| 5 year lagged moving average of production(Gt) | .3 | .3 | .3 |
| 5 year lagged moving average of resource life(Years) | 155.1 | 149.7 | 140.5 |
| Net present value of assets($m)(d) | 41319 | 45434 | 52423 |
| BROWN COAL-RECOVERABLE | | | |
| Economic demonstrated resource(Gt)(b) | 37.5 | 37.5 | 37.4 |
| 5 year lagged moving average of prices at 30 June($/t) | 7.3 | 7.1 | 7.1 |
| Cost including normal return on capital($/t)(c) | 6.6 | 6.4 | 6.4 |
| Annual production(Gt) | .1 | .1 | .1 |
| 5 year lagged moving average of production(Gt) | .1 | .1 | .1 |
| 5 year lagged moving average of resource life(Years) | 564.2 | 556.7 | 548.5 |
| Net present value of assets($m)(d) | 715 | 707 | 708 |
| CADMIUM | | | |
| Economic demonstrated resource(Kt)(b) | 75 | 64.2 | 62.9 |
| 5 year lagged moving average of prices at 30 June($/t) | 1086 | 1293 | 2042 |
| Cost including normal return on capital($/t)(c) | 543 | 647 | 1021 |
| Annual production(Kt) | .4 | .4 | .5 |
| 5 year lagged moving average of production(Kt) | .4 | .4 | .4 |
| 5 year lagged moving average of resource life(Years) | 171.8 | 155.1 | 155.7 |
| Net present value of assets($m)(d) | 4 | 4 | 6 |
| COBALT | | | |
| Economic demonstrated resource(Kt)(b) | 1351 | 1342 | 1430 |
| 5 year lagged moving average of prices at 30 June($/t) | 47016 | 48265 | 46094 |
| Cost including normal return on capital($/t)(c) | 28209 | 33786 | 32266 |
| Annual production(Kt) | 5.1 | 4.6 | 4.6 |
| 5 year lagged moving average of production(Kt) | 3.4 | 4 | 4.4 |
| 5 year lagged moving average of resource life(Years) | 397.8 | 338.3 | 321.8 |
| Net present value of assets($m)(d) | 944 | 856 | 904 |
| COPPER | | | |
| Economic demonstrated resource(Mt)(b) | 41 | 42 | 42 |
| 5 year lagged moving average of prices at 30 June($/t) | 2813 | 3087 | 3397 |
| Cost including normal return on capital($/t)(c) | 1382 | 1347 | 1506 |
| Annual production(Mt) | .9 | .8 | .9 |
| 5 year lagged moving average of production(Mt) | .8 | .9 | .9 |
| 5 year lagged moving average of resource life(Years) | 49.9 | 49.5 | 47.9 |
| Net present value of assets($m)(d) | 16756 | 21063 | 23174 |
| DIAMONDS | | | |
| Economic demonstrated resource(Mc)(b) | 128.2 | 119.1 | 129.2 |
| 5 year lagged moving average of prices at 30 June($/c) | 19.3 | 21 | 20.9 |
| Cost including normal return on capital($/c)(c) | 14 | 14 | 14.6 |
| Annual production(Mc) | 32 | 24.3 | 32.5 |
| 5 year lagged moving average of production(Mc) | 30.2 | 27.8 | 28.4 |
| 5 year lagged moving average of resource life(Years) | 4.3 | 4.3 | 4.6 |
| Net present value of assets($m)(d) | 572 | 700 | 676 |
| GOLD | | | |
| Economic demonstrated resource(t)(b) | 5486 | 5407 | 5225 |
| 5 year lagged moving average of prices at 30 June($/Kg) | 15958 | 16746 | 17341 |
| Cost including normal return on capital($/Kg)(c) | 14297 | 15007 | 14553 |
| Annual production(t) | 278 | 267 | 266 |
| 5 year lagged moving average of production(t) | 288.7 | 281.5 | 275 |
| 5 year lagged moving average of resource life(Years) | 19 | 19.2 | 19 |
| Net present value of assets($m)(d) | 5045 | 5198 | 8045 |
| IRON ORE | | | |
| Economic demonstrated resource(Gt)(b) | 13.5 | 15.5 | 16.4 |
| 5 year lagged moving average of prices at 30 June($/t) | 28.5 | 29.9 | 34.5 |
| Cost including normal return on capital($/t)(c) | 22.8 | 24 | 27.6 |
| Annual production(Gt) | .2 | .2 | .3 |
| 5 year lagged moving average of production(Gt) | .2 | .2 | .2 |
| 5 year lagged moving average of resource life(Years) | 77.3 | 82.4 | 79.4 |
| Net present value of assets($m)(d) | 14630 | 16704 | 20837 |
| LEAD | | | |
| Economic demonstrated resource(Mt)(b) | 21.1 | 23.4 | 23.8 |
| 5 year lagged moving average of prices at 30 June($/t) | 845 | 914 | 1005 |
| Cost including normal return on capital($/t)(c) | 630.4 | 682.3 | 750.1 |
| Annual production(Mt) | .7 | .7 | .7 |
| 5 year lagged moving average of production(Mt) | .7 | .7 | .7 |
| 5 year lagged moving average of resource life(Years) | 30.4 | 33.5 | 33.8 |
| Net present value of assets($m)(d) | 1899 | 2137 | 2356 |
| LITHIUM | | | |
| Economic demonstrated resource(Kt)(b) | 168.5 | 170 | 170 |
| 5 year lagged moving average of prices at 30 June($/t) | 8080 | 7412 | 6827 |
| Cost including normal return on capital($/t)(c) | 6220 | 5706 | 5461 |
| Annual production(Kt) | 3.3 | 2.1 | .6 |
| 5 year lagged moving average of production(Kt) | 2.6 | 2.5 | 2.2 |
| 5 year lagged moving average of resource life(Years) | 65.5 | 66.8 | 77.6 |
| Net present value of assets($m)(d) | 70 | 64 | 44 |
| MAGNESITE | | | |
| Economic demonstrated resource(Mt)(b) | 344 | 344 | 344 |
| 5 year lagged moving average of prices at 30 June($/t) | 256.6 | 210.2 | 173.3 |
| Cost including normal return on capital($/t)(c) | 23.1 | 22 | 19.8 |
| Annual production(Mt) | .5 | .6 | .6 |
| 5 year lagged moving average of production(Mt) | .4 | .5 | .5 |
| 5 year lagged moving average of resource life(Years) | 813.8 | 720.7 | 662.1 |
| Net present value of assets($m)(d) | 1459 | 1339 | 1173 |
| MINERAL SANDS-ILMENITE | | | |
| Economic demonstrated resource(Mt)(b) | 213 | 215.6 | 214 |
| 5 year lagged moving average of prices at 30 June($/t) | 141.2 | 138.2 | 129 |
| Cost including normal return on capital($/t)(c) | 84.7 | 96.8 | 90.3 |
| Annual production(Mt) | 2.1 | 1.9 | 2 |
| 5 year lagged moving average of production(Mt) | 2.1 | 2 | 2 |
| 5 year lagged moving average of resource life(Years) | 103.4 | 107.3 | 107.9 |
| Net present value of assets($m)(d) | 1718 | 1240 | 1128 |
| MINERAL SANDS-RUTILE | | | |
| Economic demonstrated resource(Mt)(b) | 20.8 | 20.4 | 20.5 |
| 5 year lagged moving average of prices at 30 June($/t) | 831.8 | 836.4 | 846.5 |
| Cost including normal return on capital($/t)(c) | 499.1 | 501.8 | 507.9 |
| Annual production(Mt) | .2 | .2 | .2 |
| 5 year lagged moving average of production(Mt) | .2 | .2 | .2 |
| 5 year lagged moving average of resource life(Years) | 100.6 | 105.6 | 107.7 |
| Net present value of assets($m)(d) | 1013 | 960 | 947 |
| MINERAL SANDS-ZIRCON | | | |
| Economic demonstrated resource(Mt)(b) | 31.1 | 31.5 | 32.9 |
| 5 year lagged moving average of prices at 30 June($/t) | 676.1 | 741.3 | 815.1 |
| Cost including normal return on capital($/t)(c) | 405.7 | 444.8 | 489.1 |
| Annual production(Mt) | .5 | .5 | .4 |
| 5 year lagged moving average of production(Mt) | .4 | .4 | .4 |
| 5 year lagged moving average of resource life(Years) | 79.7 | 76.9 | 78.2 |
| Net present value of assets($m)(d) | 1551 | 1794 | 2007 |
| NICKEL | | | |
| Economic demonstrated resource(Mt)(b) | 22.7 | 23.3 | 23.9 |
| 5 year lagged moving average of prices at 30 June($/t) | 12408 | 14118 | 14793 |
| Cost including normal return on capital($/t)(c) | 7445 | 8471 | 8876 |
| Annual production(Mt) | .2 | .2 | .2 |
| 5 year lagged moving average of production(Mt) | .2 | .2 | .2 |
| 5 year lagged moving average of resource life(Years) | 128.7 | 124.1 | 120.8 |
| Net present value of assets($m)(d) | 12938 | 15761 | 17206 |
| PETROLEUM (RECOVERABLE)-CRUDE OIL | | | |
| Economic demonstrated resource(Gl)(b) | 171 | 156.8 | 157 |
| 5 year lagged moving average of prices at 30 June($/Kl | 265.5 | 298.8 | 336.8 |
| Cost including normal return on capital($/Kl)(c) | 106.2 | 119.5 | 134.7 |
| Annual production(Gl) | 25.1 | 23.8 | 18.2 |
| 5 year lagged moving average of production(Gl) | 28.6 | 28.7 | 25.3 |
| 5 year lagged moving average of resource life(Years) | 6 | 5.5 | 6.2 |
| Net present value of assets($m)(d) | 21812 | 22896 | 25201 |
| PETROLEUM-NATURAL GAS | | | |
| Economic demonstrated resource(b m3)(b) | 2484.5 | 2567 | 2587 |
| 5 year lagged moving average of prices at 30 June($/'000 m3) | 191.8 | 199.2 | 207.4 |
| Cost including normal return on capital($/'000 m3)(c) | 76.7 | 79.7 | 83 |
| Annual production(b m3) | 35.5 | 39.6 | 37.3 |
| 5 year lagged moving average of production(b m3) | 34.9 | 36.2 | 36.8 |
| 5 year lagged moving average of resource life(Years) | 71.2 | 70.9 | 70.3 |
| Net present value of assets($m)(d) | 58804 | 63846 | 66720 |
| PETROLEUM-CONDENSATE | | | |
| Economic demonstrated resource(Gl)(b) | 249 | 288.5 | 301 |
| 5 year lagged moving average of prices at 30 June($/Kl) | 268.2 | 316.9 | 346.2 |
| Cost including normal return on capital($/Kl)(c) | 134.1 | 158.5 | 173.1 |
| Annual production(Gl) | 7.9 | 7.8 | 7.2 |
| 5 year lagged moving average of production(Gl) | 7.8 | 7.9 | 7.9 |
| 5 year lagged moving average of resource life(Years) | 32 | 36.4 | 38.2 |
| Net present value of assets($m)(d) | 13521 | 16944 | 18432 |
| LPG NATURALLY OCCURING | | | |
| Economic demonstrated resource(Gl)(b) | 197 | 206.5 | 214 |
| 5 year lagged moving average of prices at 30 June($/'000 m3) | 224.1 | 242.6 | 249.8 |
| Cost including normal return on capital($/'000 m3)(c) | 112.1 | 121.3 | 124.9 |
| Annual production(Gl) | 7.1 | 5.9 | 4.6 |
| 5 year lagged moving average of production(Gl) | 6 | 6.1 | 5.9 |
| 5 year lagged moving average of resource life(Years) | 32.6 | 34.1 | 36.5 |
| Net present value of assets($m)(d) | 8822 | 9753 | 9795 |
| PLATINUM GROUP (T,PT,PD) | | | |
| Economic demonstrated resource(t)(b) | 18.5 | 18.8 | 19 |
| 5 year lagged moving average of prices at 30 June($/Kg) | 28078 | 32087 | 33499 |
| Cost including normal return on capital($/Kg)(c) | 19654 | 22461 | 23449 |
| Annual production(t) | 1 | 1 | .9 |
| 5 year lagged moving average of production(t) | .9 | .9 | .9 |
| 5 year lagged moving average of resource life(Years) | 20.4 | 20.1 | 20.7 |
| Net present value of assets($m)(d) | 83 | 98 | 101 |
| RARE EARTHS (REO,Y203) | | | |
| Economic demonstrated resource(Kt)(b) | 350 | 500 | 500 |
| 5 year lagged moving average of prices at 30 June($/t) | 0 | 0 | 0 |
| Cost including normal return on capital($/t)(c) | 0 | 0 | 0 |
| Annual production(Kt) | 0 | 0 | 0 |
| 5 year lagged moving average of production(Kt) | 0 | 0 | 0 |
| 5 year lagged moving average of resource life(Years) | 0 | 0 | 0 |
| Net present value of assets($m)(d) | 0 | 0 | 0 |
| SILVER | | | |
| Economic demonstrated resource(Kt)(b) | 42.2 | 42.7 | 44 |
| 5 year lagged moving average of prices at 30 June($/Kg) | 277.3 | 274.9 | 278.2 |
| Cost including normal return on capital($/Kg)(c) | 249.5 | 247.4 | 250.4 |
| Annual production(Kt) | 1.9 | 2.1 | 2.3 |
| 5 year lagged moving average of production(Kt) | 1.9 | 2 | 2.1 |
| 5 year lagged moving average of resource life(Years) | 22.2 | 21.4 | 21.2 |
| Net present value of assets($m)(d) | 597 | 614 | 639 |
| TIN | | | |
| Economic demonstrated resource(Kt)(b) | 154.5 | 163 | 163 |
| 5 year lagged moving average of prices at 30 June($/t) | 7623 | 8527 | 8828 |
| Cost including normal return on capital($/t)(c) | 5336 | 5969 | 6179 |
| Annual production(Kt) | 6.2 | 1.5 | 2.1 |
| 5 year lagged moving average of production(Kt) | 8.8 | 7.1 | 5.6 |
| 5 year lagged moving average of resource life(Years) | 17.6 | 22.9 | 29.2 |
| Net present value of assets($m)(d) | 203 | 210 | 185 |
| URANIUM | | | |
| Economic demonstrated resource(Kt)(b) | 688 | 708.5 | 716 |
| 5 year lagged moving average of prices at 30 June($/Kg) | 46.4 | 45.8 | 46.3 |
| Cost including normal return on capital($/Kg)(c) | 27.8 | 32 | 32.4 |
| Annual production(Kt) | 9.2 | 9.6 | 11 |
| 5 year lagged moving average of production(Kt) | 8.3 | 8.9 | 9.5 |
| 5 year lagged moving average of resource life(Years) | 83.2 | 79.6 | 75.7 |
| Net present value of assets($m)(d) | 2256 | 1811 | 1919 |
| ZINC | | | |
| Economic demonstrated resource(Mt)(b) | 37.9 | 41.4 | 41.8 |
| 5 year lagged moving average of prices at 30 June($/t) | 1766 | 1695 | 1613 |
| Cost including normal return on capital($/t)(c) | 1589 | 1526 | 1452 |
| Annual production(Mt) | 1.5 | 1.4 | 1.4 |
| 5 year lagged moving average of production(Mt) | 1.4 | 1.4 | 1.4 |
| 5 year lagged moving average of resource life(Years) | 27.4 | 29.1 | 29 |
| Net present value of assets($m)(d) | 3007 | 3053 | 2913 |
| TOTAL | | | |
| Net present value of assets($m)(d) | 213560 | 237190 | 260240 |
n.r. not recorded |
|
|
|
| (a) Experimental estimates. | | | |
| (b) Refers to that part of demonstrated resources for which extraction is expected to be profitable over the life of the mine given current prices and costs. | | | |
| (c) Cost of extraction. | | | |
| (d) See Explanatory Notes, paragraph 8. | | | |
|
