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| | Jun.2002 | Jun.2003 | Jun.2004 |
| Table 84. VALUE OF DEMONSTRATED SUBSOIL ASSETS, By commodity | | | |
| - as at 30 June(a) | | | |
|
ANTIMONY |
|
|
|
| Economic demonstrated resource(Kt)(b) | 87.5 | 82.5 | 80 |
| 5 year lagged moving average of prices at 30 June($/t) | 2520.6 | 2657.9 | 2872.1 |
| Cost including normal return on capital($/t)(c) | 1956.9 | 1956.4 | 1957.4 |
| Annual production(Kt) | 1.4 | 1.2 | 0 |
| 5 year lagged moving average of production(Kt) | 1.6 | 1.5 | 1.2 |
| 5 year lagged moving average of resource life(Years) | 54.2 | 55.2 | 69.1 |
| Net present value of assets($m)(d) | 13 | 15 | 16 |
| BAUXITE | | | |
| Economic demonstrated resource(Gt)(b) | 5.2 | 5.6 | 5.7 |
| 5 year lagged moving average of prices at 30 June($/t) | 33.8 | 34.2 | 33.3 |
| Cost including normal return on capital($/t)(c) | 27.5 | 27.5 | 27.5 |
| Annual production(Gt) | .1 | .1 | .1 |
| 5 year lagged moving average of production(Gt) | .1 | .1 | .1 |
| 5 year lagged moving average of resource life(Years) | 102.6 | 107.5 | 105.4 |
| Net present value of assets($m)(d) | 4823 | 5159 | 4682 |
| BLACK COAL-RECOVERABLE | | | |
| Economic demonstrated resource(Gt)(b) | 39 | 39.4 | 40.4 |
| 5 year lagged moving average of prices at 30 June($/t) | 56.8 | 55.1 | 57.3 |
| Cost including normal return on capital($/t)(c) | 42 | 42 | 45 |
| Annual production(Gt) | .3 | .3 | .3 |
| 5 year lagged moving average of production(Gt) | .2 | .3 | .3 |
| 5 year lagged moving average of resource life(Years) | 160.7 | 155.1 | 151.9 |
| Net present value of assets($m)(d) | 54948 | 48977 | 48889 |
| BROWN COAL-RECOVERABLE | | | |
| Economic demonstrated resource(Gt)(b) | 37.6 | 37.5 | 37.5 |
| 5 year lagged moving average of prices at 30 June($/t) | 7.4 | 7.3 | 7.1 |
| Cost including normal return on capital($/t)(c) | 6.6 | 6.6 | 6.8 |
| Annual production(Gt) | .1 | .1 | .1 |
| 5 year lagged moving average of production(Gt) | .1 | .1 | .1 |
| 5 year lagged moving average of resource life(Years) | 573.5 | 564.2 | 557.4 |
| Net present value of assets($m)(d) | 747 | 637 | 258 |
| CADMIUM | | | |
| Economic demonstrated resource(Kt)(b) | 90.1 | 75 | 65.5 |
| 5 year lagged moving average of prices at 30 June($/t) | 974.2 | 1208.1 | 1447.4 |
| Cost including normal return on capital($/t)(c) | 394 | 417.9 | 384.9 |
| Annual production(Kt) | .4 | .4 | .4 |
| 5 year lagged moving average of production(Kt) | .5 | .4 | .4 |
| 5 year lagged moving average of resource life(Years) | 199.1 | 172.5 | 157.5 |
| Net present value of assets($m)(d) | 4 | 5 | 7 |
| COBALT | | | |
| Economic demonstrated resource(Kt)(b) | 1445.5 | 1351 | 1253 |
| 5 year lagged moving average of prices at 30 June($/t) | 56315.9 | 47015.7 | 44452.9 |
| Cost including normal return on capital($/t)(c) | 28285.2 | 25698.6 | 24128.2 |
| Annual production(Kt) | 4.6 | 5 | 4.8 |
| 5 year lagged moving average of production(Kt) | 2.7 | 3.4 | 4 |
| 5 year lagged moving average of resource life(Years) | 545.3 | 400.9 | 313.4 |
| Net present value of assets($m)(d) | 1136 | 1062 | 1211 |
| COPPER | | | |
| Economic demonstrated resource(Mt)(b) | 36.5 | 41.1 | 42.1 |
| 5 year lagged moving average of prices at 30 June($/t) | 2883.4 | 2813.3 | 3086.7 |
| Cost including normal return on capital($/t)(c) | 1745.3 | 1382.4 | 1347.2 |
| Annual production(Mt) | .9 | .9 | .8 |
| 5 year lagged moving average of production(Mt) | .8 | .8 | .9 |
| 5 year lagged moving average of resource life(Years) | 47.8 | 49.9 | 49.7 |
| Net present value of assets($m)(d) | 12636 | 16756 | 21076 |
| DIAMONDS | | | |
| Economic demonstrated resource(Mc)(b) | 142.4 | 128.2 | 109 |
| 5 year lagged moving average of prices at 30 June($/c) | 17.4 | 19.3 | 21 |
| Cost including normal return on capital($/c)(c) | 14 | 14 | 14 |
| Annual production(Mc) | 30.7 | 32 | 24.3 |
| 5 year lagged moving average of production(Mc) | 32.4 | 30.2 | 27.8 |
| 5 year lagged moving average of resource life(Years) | 4.4 | 4.3 | 3.9 |
| Net present value of assets($m)(d) | 408 | 572 | 648 |
| GOLD | | | |
| Economic demonstrated resource(t)(b) | 5398.5 | 5485.5 | 5589 |
| 5 year lagged moving average of prices at 30 June($/Kg) | 15881.3 | 15957.5 | 16745.6 |
| Cost including normal return on capital($/Kg)(c) | 15182.9 | 14296.6 | 15007 |
| Annual production(t) | 264.6 | 278 | 267 |
| 5 year lagged moving average of production(t) | 296.3 | 288.7 | 281.5 |
| 5 year lagged moving average of resource life(Years) | 18.2 | 19 | 19.9 |
| Net present value of assets($m)(d) | 2166 | 5045 | 5284 |
| IRON ORE | | | |
| Economic demonstrated resource(Gt)(b) | 12.7 | 13.5 | 14.6 |
| 5 year lagged moving average of prices at 30 June($/t) | 29.1 | 28.5 | 29.9 |
| Cost including normal return on capital($/t)(c) | 22 | 23.4 | 25.4 |
| Annual production(Gt) | .2 | .2 | .2 |
| 5 year lagged moving average of production(Gt) | .2 | .2 | .2 |
| 5 year lagged moving average of resource life(Years) | 76.2 | 77.3 | 77.6 |
| Net present value of assets($m)(d) | 17867 | 13078 | 12613 |
| LEAD | | | |
| Economic demonstrated resource(Mt)(b) | 18.3 | 21.1 | 22.9 |
| 5 year lagged moving average of prices at 30 June($/t) | 888.2 | 844.7 | 914.3 |
| Cost including normal return on capital($/t)(c) | 662.8 | 630.4 | 682.3 |
| 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) | 27.3 | 30.4 | 32.8 |
| Net present value of assets($m)(d) | 1898 | 1900 | 2125 |
| LITHIUM | | | |
| Economic demonstrated resource(Kt)(b) | 169 | 168.5 | 170 |
| 5 year lagged moving average of prices at 30 June($/t) | 8872.3 | 8080.5 | 7411.9 |
| Cost including normal return on capital($/t)(c) | 6830 | 6220.5 | 5705.8 |
| Annual production(Kt) | 3.2 | 3.3 | 2.1 |
| 5 year lagged moving average of production(Kt) | 2.3 | 2.6 | 2.5 |
| 5 year lagged moving average of resource life(Years) | 74.6 | 65.5 | 66.8 |
| Net present value of assets($m)(d) | 70 | 70 | 64 |
| MAGNESITE | | | |
| Economic demonstrated resource(Mt)(b) | 353.5 | 344 | 344 |
| 5 year lagged moving average of prices at 30 June($/t) | 317.6 | 256.6 | 210.2 |
| Cost including normal return on capital($/t)(c) | 27.5 | 23.1 | 22 |
| Annual production(Mt) | .6 | .5 | .6 |
| 5 year lagged moving average of production(Mt) | .4 | .4 | .5 |
| 5 year lagged moving average of resource life(Years) | 882.7 | 813.8 | 720.7 |
| Net present value of assets($m)(d) | 1777 | 1459 | 1339 |
| MINERAL SANDS-ILMENITE | | | |
| Economic demonstrated resource(Mt)(b) | 203.5 | 213 | 217.2 |
| 5 year lagged moving average of prices at 30 June($/t) | 138.3 | 141.2 | 138.2 |
| Cost including normal return on capital($/t)(c) | 77 | 77 | 77 |
| Annual production(Mt) | 1.8 | 2.1 | 1.9 |
| 5 year lagged moving average of production(Mt) | 2.1 | 2.1 | 2 |
| 5 year lagged moving average of resource life(Years) | 95.8 | 103.4 | 108.1 |
| Net present value of assets($m)(d) | 1988 | 1953 | 1831 |
| MINERAL SANDS-RUTILE | | | |
| Economic demonstrated resource(Mt)(b) | 22.4 | 20.8 | 20.2 |
| 5 year lagged moving average of prices at 30 June($/t) | 848.3 | 831.8 | 836.4 |
| Cost including normal return on capital($/t)(c) | 399.2 | 399.2 | 399.2 |
| 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) | 104.7 | 100.6 | 104.8 |
| Net present value of assets($m)(d) | 1468 | 1317 | 1254 |
| MINERAL SANDS-ZIRCON | | | |
| Economic demonstrated resource(Mt)(b) | 30.6 | 31.1 | 30 |
| 5 year lagged moving average of prices at 30 June($/t) | 687.2 | 676.1 | 741.3 |
| Cost including normal return on capital($/t)(c) | 269.6 | 269.6 | 269.6 |
| Annual production(Mt) | .4 | .5 | .5 |
| 5 year lagged moving average of production(Mt) | .4 | .4 | .4 |
| 5 year lagged moving average of resource life(Years) | 80.4 | 79.7 | 73.4 |
| Net present value of assets($m)(d) | 2415 | 2332 | 2850 |
| NICKEL | | | |
| Economic demonstrated resource(Mt)(b) | 22.5 | 22.7 | 22.6 |
| 5 year lagged moving average of prices at 30 June($/t) | 11358.8 | 12407.8 | 14118.4 |
| Cost including normal return on capital($/t)(c) | 5891.3 | 6303.7 | 7031.1 |
| 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) | 139.6 | 128.7 | 120.6 |
| Net present value of assets($m)(d) | 13477 | 15913 | 19779 |
| PETROLEUM (RECOVERABLE)-CRUDE OIL | | | |
| Economic demonstrated resource(Gl)(b) | 180.5 | 185.5 | 185.5 |
| 5 year lagged moving average of prices at 30 June($/Kl | 235.5 | 265.5 | 298.8 |
| Cost including normal return on capital($/Kl)(c) | 81.9 | 84.7 | 88.1 |
| Annual production(Gl) | 28.9 | 25.8 | 20.7 |
| 5 year lagged moving average of production(Gl) | 27.2 | 27.2 | 27.3 |
| 5 year lagged moving average of resource life(Years) | 6.6 | 6.8 | 6.8 |
| Net present value of assets($m)(d) | 21922 | 26170 | 30587 |
| PETROLEUM-NATURAL GAS | | | |
| Economic demonstrated resource(b m3)(b) | 2455 | 2455 | 2488 |
| 5 year lagged moving average of prices at 30 June($/'000 m3) | 180.6 | 191.8 | 199.2 |
| Cost including normal return on capital($/'000 m3)(c) | 37.9 | 38.4 | 39 |
| Annual production(b m3) | 32.1 | 33.2 | 33.3 |
| 5 year lagged moving average of production(b m3) | 32.5 | 33.1 | 33.6 |
| 5 year lagged moving average of resource life(Years) | 75.6 | 74.3 | 74.1 |
| Net present value of assets($m)(d) | 70334 | 74367 | 79493 |
| PETROLEUM-CONDENSATE | | | |
| Economic demonstrated resource(Gl)(b) | 237 | 236.5 | 251 |
| 5 year lagged moving average of prices at 30 June($/Kl) | 245.9 | 273.4 | 292.8 |
| Cost including normal return on capital($/Kl)(c) | 85.9 | 88.1 | 89.9 |
| Annual production(Gl) | 7.2 | 7.5 | 7.2 |
| 5 year lagged moving average of production(Gl) | 7.6 | 7.5 | 7.4 |
| 5 year lagged moving average of resource life(Years) | 31 | 31.5 | 34.1 |
| Net present value of assets($m)(d) | 16083 | 17943 | 19815 |
| LPG NATURALLY OCCURING | | | |
| Economic demonstrated resource(Gl)(b) | 247 | 245.5 | 259 |
| 5 year lagged moving average of prices at 30 June($/'000 m3) | 200.6 | 224.1 | 242.6 |
| Cost including normal return on capital($/'000 m3)(c) | 85.9 | 85.9 | 86.7 |
| Annual production(Gl) | 4.6 | 4.7 | 4.6 |
| 5 year lagged moving average of production(Gl) | 4.8 | 4.9 | 5 |
| 5 year lagged moving average of resource life(Years) | 51.1 | 50.3 | 51.5 |
| Net present value of assets($m)(d) | 8145 | 9603 | 11260 |
| PLATINUM GROUP (T,PT,PD) | | | |
| Economic demonstrated resource(t)(b) | 27.6 | 18.5 | 18.5 |
| 5 year lagged moving average of prices at 30 June($/Kg) | 24596.9 | 28077.5 | 32087.3 |
| Cost including normal return on capital($/Kg)(c) | 13185.8 | 13581.7 | 13988.6 |
| Annual production(t) | .1 | .2 | .6 |
| 5 year lagged moving average of production(t) | .1 | .1 | .2 |
| 5 year lagged moving average of resource life(Years) | 269.5 | 144.6 | 82.1 |
| Net present value of assets($m)(d) | 18 | 27 | 60 |
| RARE EARTHS (REO,Y203) | | | |
| Economic demonstrated resource(Kt)(b) | 250 | 350 | 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($m)(d) | 0 | 0 | 0 |
| SILVER | | | |
| Economic demonstrated resource(Kt)(b) | 41.6 | 42.2 | 41.4 |
| 5 year lagged moving average of prices at 30 June($/Kg) | 286.6 | 277.3 | 274.9 |
| Cost including normal return on capital($/Kg)(c) | 225.5 | 236.6 | 237.1 |
| Annual production(Kt) | 2.1 | 1.9 | 2.1 |
| 5 year lagged moving average of production(Kt) | 1.8 | 1.9 | 2 |
| 5 year lagged moving average of resource life(Years) | 23.2 | 22.2 | 20.8 |
| Net present value of assets($m)(d) | 1288 | 875 | 833 |
| TIN | | | |
| Economic demonstrated resource(Kt)(b) | 124.7 | 154.5 | 163 |
| 5 year lagged moving average of prices at 30 June($/t) | 8763.4 | 7622.9 | 8527.4 |
| Cost including normal return on capital($/t)(c) | 4948.8 | 4676.1 | 4917.7 |
| Annual production(Kt) | 8.2 | 6.2 | 1.5 |
| 5 year lagged moving average of production(Kt) | 9.6 | 8.8 | 7.1 |
| 5 year lagged moving average of resource life(Years) | 13 | 17.6 | 22.9 |
| Net present value of assets($m)(d) | 314 | 262 | 297 |
| URANIUM | | | |
| Economic demonstrated resource(Kt)(b) | 682 | 688 | 701 |
| 5 year lagged moving average of prices at 30 June($/Kg) | 49 | 46.4 | 45.8 |
| Cost including normal return on capital($/Kg)(c) | 24.3 | 20.7 | 21.8 |
| Annual production(Kt) | 8 | 9.2 | 9.6 |
| 5 year lagged moving average of production(Kt) | 7.6 | 8.3 | 8.9 |
| 5 year lagged moving average of resource life(Years) | 89.9 | 83.2 | 78.7 |
| Net present value of assets($m)(d) | 2852 | 3121 | 3165 |
| ZINC | | | |
| Economic demonstrated resource(Mt)(b) | 34 | 37.9 | 41 |
| 5 year lagged moving average of prices at 30 June($/t) | 1853.1 | 1765.5 | 1695.4 |
| Cost including normal return on capital($/t)(c) | 1490.1 | 1271.1 | 1240.9 |
| Annual production(Mt) | 1.5 | 1.5 | 1.4 |
| 5 year lagged moving average of production(Mt) | 1.3 | 1.4 | 1.4 |
| 5 year lagged moving average of resource life(Years) | 26.5 | 27.4 | 28.8 |
| Net present value of assets($m)(d) | 5795 | 8423 | 8159 |
| TOTAL | | | |
| Net present value of assets($m)(d) | 244990 | 257290 | 278840 |
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. | | | |
|
