Rio Tinto 1QPR 2004

Rio Tinto PLC 21 April 2004 First quarter operations review Overview • First quarter production was adversely affected by poor weather conditions, the carry over of operational issues from 2003, especially the reduced level of production at the Grasberg copper and gold mine, and the absence of production following the disposal of non core assets. These factors were partially offset by increased production from new projects. • Tropical cyclone Monty severely affected production at the iron ore operations in the western Pilbara. Unusually wet weather also affected coal operations in the Hunter Valley and the Argyle diamond mine. In addition, Argyle was affected by tight mining conditions. • Good progress has been made in resolving the operational issues that affected performance in 2003. Grasberg remains on track to return to mining higher grades in the second quarter. Work on improving pit stability at Cordero Rojo by lowering the high wall advanced. A port rationing agreement, aimed at reducing demurrage charges at Newcastle, has been approved. • Market conditions for industrial minerals remain flat. In particular, titanium dioxide slag production remains curtailed in line with market demand. • Continuing poor ore mineralogy, combined with the timing of smelter maintenance, affected production levels at Kennecott Utah Copper. • Production benefited from the increased output from new projects in diamonds (Diavik), iron ore (West Angelas), coking coal (Hail Creek) and copper (Escondida). • The balance sheet was strengthened by proceeds of over $1 billion from the sale of non core assets. Two further transactions agreed in the first quarter are expected to be completed by the half year. • Reflecting the strength of the current exploration portfolio, the promising Eagle (nickel) and Dashkasan (gold) exploration discoveries were transferred to product groups for the next stage of evaluation. All figures in this report are US dollars unless otherwise stated IRON ORE Rio Tinto share of production (000 tonnes) Q1 04 vs Q1 03 vs Q4 03 Hamersley (incl share of Channar) 15,815 3% -16% Robe River 5,447 -6% -18% IOC 1,969 8% -10% Chinese and non-Chinese demand for all iron ore products remained strong. Hamersley Production was severely disrupted by tropical cyclone Monty which hit the Pilbara in early March. Mine and port facilities were closed and the subsequent flooding also affected transport infrastructure. Operations have now largely returned to normal, with the exception of Tom Price, which will remain flood affected well into the second quarter. The effects of the weather all but negated the year on year production growth achieved in January and February. Shipments of Yandi fines continued through Cape Lambert. Agreement was reached in principle with Nippon Steel for the supply of some 150 million tonnes of Yandi ore under a long term contract of at least 20 years. The new Eastern Range mine was commissioned and was officially opened on 19 April 2004. Robe River Production from Pannawonica was also affected by flooding associated with tropical cyclone Monty. Production levels have now returned to near normal, but flooding will continue to affect product quality for some weeks. Shipments from West Angelas continued to increase although production was down on the previous quarter due to plant shutdowns facilitating capacity expansion. West Angelas reached its design capacity rate of 20 million tonnes per annum this quarter, two years ahead of schedule. ENERGY US Thermal Coal Rio Tinto share of production (000 tonnes) Q1 04 vs Q1 03 vs Q4 03 Kennecott Energy 27,403 8% -4% Work advanced on lowering the high wall at Cordero Rojo to alleviate the stability issues that have affected production over the last two years. Strong demand, coupled with improved performance from Cordero Rojo, resulted in sales and production eight per cent higher than in the first quarter of 2003. Australian Coal Rio Tinto share of production (000 tonnes) Q1 04 vs Q1 03 vs Q4 03 Rio Tinto Coal Australia Hard coking coal 1,200 228% 26% Other coal 3,964 0% -6% Coal & Allied Other coal 3,332 -18% -16% Other coal includes thermal, semi-soft and semi-hard coking coal. Demand for thermal coal continued to strengthen. The benefits of rising thermal coal prices will flow through progressively during the year, but particularly in the second half. Demand for coking coal remained strong. Rio Tinto Coal Australia The new Hail Creek coking coal mine continued to ramp up towards its initial capacity of 5.5 million tonnes. A 15 year contract to supply 30 million tonnes of Hail Creek product to Nippon Steel was signed in April and this contract will significantly underpin an expansion of the mine which is currently being studied. This, together with the change in mix of coal from the Kestrel mine, means that coking coal is becoming a more significant product for Rio Tinto. Sales from Blair Athol were constrained by the failure of a reclaimer at the independently managed Dalrymple Bay Coal Terminal. This reduced port throughput for a period of seven weeks. Coal & Allied Sales through the port of Newcastle continue to be affected by port and rail congestion and demurrage charges averaged over US$2 per tonne. A port rationing agreement aimed at reducing the ship queues (and hence demurrage) was given approval by the Australian Competition and Consumer Commission (ACCC) in mid-March. Production from all mines was affected by wet weather. An upgrade to the coal preparation plant, which reduced operating time during the modifications, also adversely affected production from the Hunter Valley Operations. Coal & Allied came under unified management with Rio Tinto Coal Australia with effect from 1 February 2004. In addition, Mount Thorley and Warkworth mines have been managed as one operation since late January 2004. Both these organisational changes will improve efficiency and reduce costs. Other energy operations ERA halted operations at the mine on 24 March 2004 due to an incident in the water supply at Ranger's processing plant. Mining operations resumed on 31 March 2004 and normal operations at the processing plant resumed on 6 April 2004. INDUSTRIAL MINERALS Rio Tinto share of production (000 tonnes) Q1 04 vs Q1 03 vs Q4 03 Borates 134 -4% 0% Titanium dioxide feedstock 287 -1% -2% Total borates production was marginally below the first quarter of last year due to the timing of maintenance. Boric acid was produced at capacity due to continued strong demand for refined products. Rio Tinto Iron & Titanium continued to produce slag at below capacity in line with market demand. However, the upgraded slag (UGS) plant produced at capacity. ALUMINIUM Rio Tinto share of production (000 tonnes) Q1 04 vs Q1 03 vs Q4 03 Rio Tinto Aluminium Bauxite 3,008 2% -3% Alumina 514 4% -2% Aluminium 210.1 4% -1% Aluminium production was broadly in line with the previous quarter as all smelters continue to operate at capacity. Due to major maintenance, alumina production at Queensland Alumina Limited was lower than in the fourth quarter of 2003 when record process flows were achieved. COPPER Rio Tinto share of production Q1 04 vs Q1 03 vs Q4 03 Kennecott Utah Copper Mined copper (000 tonnes) 62.5 -4% -13% Refined copper (0000 tonnes) 60.3 -11% 1% Mined gold (000 ozs) 76 0% -22% Refined gold (000 ozs) 81 -16% 0% Escondida Mined copper (000 tonnes) 83.8 13% 20% Grasberg JV* Mined copper (000 tonnes) 5.5 -84% -52% Mined gold (000 ozs) 6 -96% -94% *The above production figures for Grasberg exclude the production attributable to Rio Tinto's direct holding in Freeport which was sold on 30 March 2004. Kennecott Utah Copper Ore produced from the Bingham Canyon mine contained high arsenic levels. High arsenic levels, which will continue until at least the middle of the year, affect smelter efficiency and molybdenum recoveries. Ore production was affected by the timing of mill maintenance. Anode production was affected by unscheduled maintenance of the east anode refining furnace in February. The resulting build up of copper matte inventory will be run down over the coming months. Second quarter anode production will be affected by a ten day smelter shut down for scheduled maintenance that took place in early April. Escondida Increased production at Escondida reflected the previously announced return to its normal mine plan and production profile in January 2004. During the first quarter the concentrators operated below full throughput capacity due to difficulties in achieving the expected water recovery rates from the new tailings dam constructed during the Phase IV expansion. Grasberg Both copper and gold production from the Grasberg mine was significantly below preceding quarters as a consequence of the pit wall slide in the fourth quarter of 2003. Efforts were directed to accelerating the removal of waste material to restore safe access to the higher grade areas of the open pit. Freeport, the manager of the Grasberg mine, is now initiating mining activities in the high grade ore areas and expects to resume normal mining in the second quarter of 2004 with ore grades expected to improve throughout the remainder of the year. Rio Tinto's share of production is based on a preliminary allocation of volumes between the joint venture partners, Rio Tinto and Freeport. This allocation will not be finalised until full production has been restored. Other copper operations Completion of the cross cuts has brought cave management to maturity, allowing Palabora to mine higher copper grades which have more than offset lower ore tonnages being hoisted from the underground mine. A conveyor belt tear and secondary breaking issues disrupted underground production. Replacement secondary breaking equipment has been ordered. DIAMONDS Rio Tinto share of production (000 carats) Q1 04 vs Q1 03 vs Q4 03 Argyle 3,612 -48% -57% Diavik 922 274% 40% Tight mining conditions at Argyle as a result of the deep open pit are presently limiting mine production. Run of mine material is therefore being supplemented with lower grade stockpiled ore giving rise to lower production throughout 2004. In the first quarter this was compounded by the effects of wet weather. Diavik continues to perform well. The process plant operated comfortably ahead of design capacity rates of 1.5 million tonnes per annum. Grades continue to reflect the processing of mud rich material that surrounds the kimberlite proper. This is expected to continue for the remainder of the year. Construction commenced of a small scale diamond mine and plant at Murowa at a cost of $11 million. First production is expected during the second half of 2004. EXPLORATION AND EVALUATION Total pre-tax expenditure on exploration and evaluation charged to the profit and loss account for the quarter ending 31 March 2004 was $34 million compared with $28 million in the comparable quarter of 2003. Exploration drilling continued on copper porphyry targets in Southern Peru. Offers of interest to acquire Rio Tinto's interest in the Marcona copper deposit in Peru are being evaluated. Diamonds exploration continued in Andhra Pradesh, Karnataka and Madhya Pradesh in India and mobilisation of field crews and equipment commenced at several diamond projects in Nunavut and the Northwest Territories in Canada. A 26 tonne sample was collected by drilling a kimberlite pipe in Mauritania. Work on the Simandou (iron ore, Guinea) order of magnitude study continued. Responsibility for the discoveries at Eagle (nickel/copper, USA) and Dashkasan (gold, Iran) was transferred to the Copper group and Technology group respectively for the next stage of evaluation. Spending on the Resolution project (copper, USA) passed the level at which Rio Tinto earns 55 per cent of the project. As previously announced, this will result in the assumption of some associated environmental liabilities of $16 million. The pre-feasibility study at Resolution continues. Work commenced on the Potasio Rio Colorado project (potash, Argentina) in advance of pilot testing. 3-D seismic surveys were completed during the quarter. ASSET DISPOSALS The improvement in market conditions created a number of opportunities to divest non core assets for consideration of over $1 billion. Completed sales Rio Tinto sold its holding in Freeport-McMoRan Copper & Gold Inc (FCX) to FCX for net consideration of $882 million. In addition to the holding in FCX, Rio Tinto has a joint venture interest in production from the Grasberg mine, which is managed by FCX. The sale of FCX shares does not affect the terms of the joint venture, nor the management of the Grasberg mine. In addition Rio Tinto completed the sale of Mineracao Serra da Fortaleza Ltda, (nickel, Brazil) for about $90 million and the sale of the remaining 20 per cent interest in the Sepon project (copper/gold, Laos) for $85 million. Announced sales The intended sales of Zinkgruvan (zinc, Sweden) and Rio Tinto's 49 per cent interest in Somincor (copper/tin, Portugal) were announced in the first quarter but have yet to complete. Consideration for Zinkgruvan is expected to be $101 million plus a payment in respect of working capital. Consideration may increase by up to $5 million dependent on metal prices over the coming two years. Consideration for the Somincor interest is expected to be 58 million euros plus partial participation in copper prices in excess of 90c/lb for the first year after sale and 95c/lb in the following three years. For further information, please contact: LONDON AUSTRALIA Media Relations Media Relations Lisa Cullimore Ian Head Office: +44 (0) 20 7753 2305 Office: +61 (0) 3 9283 3620 Mobile: +44 (0) 7730 418 385 Mobile: +61 (0) 408 360 101 Investor Relations Investor Relations Peter Cunningham Dave Skinner Office: +44 (0) 20 7753 2401 Office: +61 (0) 3 9283 3628 Mobile: +44 (0) 7711 596 570 Mobile: +61 (0) 408 335 309 Richard Brimelow Susie Creswell Office: +44 (0) 20 7753 2326 Office: +61 (0) 3 9283 3639 Mobile: +44 (0) 7753 783 825 Mobile: +61 (0) 418 933 792 Website: www.riotinto.com RIO TINTO PRODUCTION SUMMARY RIO TINTO SHARE OF PRODUCTION QUARTER FULL YEAR % CHANGE 2003 2003 2004 2003 Q1 04 Q1 04 Q1 Q4 Q1 vs vs Principal Commodities Q4 03 Q1 03 Alumina ('000 t) 493 526 514 2,014 -2% 4% Aluminium ('000 t) 202.7 211.9 210.1 818.1 -1% 4% Borates ('000 t) 139 134 134 559 0% -4% Coal - hard coking coal ('000 t) 366 950 1,200 2,311 26% 228% Coal - other Australian/Indonesian ('000 t) 10,108 8,379 7,296 38,262 -13% -28% Coal - US ('000 t) 25,424 28,417 27,403 108,177 -4% 8% Copper - mined ('000 t) 231.1 182.9 180.0 867.0 -2% -22% Copper - refined ('000 t) 96.0 90.2 87.4 349.1 -3% -9% Diamonds ('000 cts) 7,156 8,968 4,534 33,272 -49% -37% Gold - mined ('000 ozs) 765 511 381 2,731 -25% -50% Gold - refined ('000 ozs) 96 81 81 308 0% -16% Iron ore ('000 t) 23,167 27,997 23,499 102,613 -16% 1% Titanium dioxide feedstock ('000 t) 290 293 287 1,192 -2% -1% Other Metals & Minerals Bauxite ('000 t) 2,958 3,103 3,008 12,316 -3% 2% Lead - mined ('000 t) 10.0 14.2 10.3 47.6 -28% 3% Molybdenum ('000 t) 1.2 1.1 1.6 4.6 45% 33% Nickel - refined (tonnes) 604 1,011 971 3,474 -4% 61% Salt ('000 t) 970 1,120 1,133 4,633 1% 17% Silver - mined ('000 ozs) 3,960 4,959 3,766 18,311 -24% -5% Silver - refined ('000 ozs) 975 653 778 2,963 19% -20% Talc ('000 t) 358 321 356 1,357 11% 0% Tin (tonnes) - 60 21 100 -65% - Uranium (tonnes) 873 1,406 1,431 5,158 2% 64% Zinc - mined ('000 t) 26.8 30.4 29.9 113.0 -2% 12% Throughout this report, figures in italics indicate adjustments made since the figure was previously quoted on the equivalent page. Production figures are sometimes more precise than the rounded numbers shown, hence small differences may result between the total of the quarter figures and the full year figures. RIO TINTO SHARE OF PRODUCTION FULL Rio Tinto 1Q 2Q 3Q 4Q 1Q YEAR interest 2003 2003 2003 2003 2004 2003 ALUMINA Production ('000 tonnes) Eurallumina 56% 139 136 150 148 145 573 Queensland Alumina 39% 354 358 350 378 368 1,440 Rio Tinto total alumina production 493 495 500 526 514 2,014 ALUMINIUM Refined production ('000 tonnes) Anglesey 51% 18.3 18.3 18.3 19.0 18.3 73.9 Bell Bay 100% 40.7 41.8 42.3 41.9 41.8 166.6 Boyne Island 59% 77.7 75.7 76.9 80.9 80.5 311.1 Tiwai Point 79% 66.1 62.7 67.5 70.2 69.5 266.5 Rio Tinto total aluminium production 202.7 198.5 204.9 211.9 210.1 818.1 BAUXITE Production ('000 tonnes) Boke 4% 58 179 123 58 121 418 Weipa 100% 2,901 3,057 2,895 3,045 2,887 11,898 Rio Tinto total bauxite production 2,958 3,236 3,018 3,103 3,008 12,316 BORATES Borates ('000 tonnes B2O3 content) Rio Tinto total borate production 100% 139 143 142 134 134 559 COAL - HARD COKING Rio Tinto Coal Australia (a) ('000 tonnes) Hail Creek Coal 92% - - 204 608 831 812 Kestrel Coal 80% 366 459 332 342 369 1,499 Rio Tinto total hard coking coal 366 459 535 950 1,200 2,311 production COAL - OTHER * Australian coal operations ('000 tonnes) Coal & Allied Industries Bengalla 30% 393 538 340 608 325 1,879 Hunter Valley Operations 76% 2,395 2,226 2,198 2,272 1,988 9,091 Mount Thorley Operations 61% 525 419 475 491 407 1,910 Warkworth 42% 735 555 563 616 612 2,469 Rio Tinto Coal Australia (a) Blair Athol Coal 71% 2,237 1,857 2,599 2,197 2,180 8,890 Kestrel Coal 80% 285 320 263 292 98 1,159 Tarong Coal 100% 1,451 1,738 1,635 1,713 1,686 6,538 Total Australian other coal 8,020 7,653 8,073 8,189 7,296 31,935 Indonesian coal operations ('000 tonnes) Kaltim Prima Coal (b) 0% 2,088 2,338 1,711 191 - 6,327 US coal operations ('000 tonnes) Kennecott Energy Antelope 100% 6,233 6,648 7,130 6,795 5,919 26,806 Colowyo (c) 100% 1,110 1,194 1,093 1,138 1,467 4,535 Cordero Rojo 100% 8,187 8,535 7,448 8,501 8,589 32,671 Decker 50% 679 730 1,068 1,203 514 3,679 Jacobs Ranch 100% 7,402 7,544 8,767 8,706 8,649 32,418 Spring Creek 100% 1,814 2,293 1,887 2,074 2,265 8,069 Total US coal 25,424 26,944 27,391 28,417 27,403 108,177 Rio Tinto total other coal production 35,533 36,935 37,175 36,797 34,698 146,439 Mine production figures for metals refer to the total quantity of metal produced in concentrates or dore bullion irrespective of whether these products are then refined on-site. * Coal - other includes thermal coal, semi-soft coking coal and semi-hard coking coal. See footnotes on page 12. RIO TINTO SHARE OF PRODUCTION (continued) FULL Rio Tinto 1Q 2Q 3Q 4Q 1Q YEAR interest 2003 2003 2003 2003 2004 2003 COPPER Mine production ('000 tonnes) Alumbrera (d) 0% 8.7 - - - - 8.7 Bingham Canyon 100% 64.8 67.8 77.6 71.6 62.5 281.8 Escondida 30% 74.4 79.8 73.4 70.1 83.8 297.8 Grasberg - FCX (e) 0% 27.3 28.0 21.5 7.7 5.5 84.5 Grasberg - Joint Venture (e) 40% 33.7 34.5 28.9 11.5 5.5 108.7 Neves Corvo (f) 49% 11.0 9.9 7.5 9.6 11.6 38.0 Northparkes 80% 5.7 5.4 5.4 5.2 5.8 21.7 Palabora 49% 5.5 6.1 7.0 7.1 5.2 25.8 Rio Tinto total mine production 231.1 231.6 221.4 182.9 180.0 867.0 Refined production ('000 tonnes) Atlantic Copper (e) 0% 10.1 10.3 9.2 8.6 7.0 38.1 Escondida 30% 10.7 11.0 11.2 11.4 11.3 44.3 Kennecott Utah Copper 100% 67.4 38.5 64.8 59.9 60.3 230.6 Palabora 49% 7.8 9.4 8.5 10.3 8.8 36.1 Rio Tinto total refined production 96.0 69.2 93.7 90.2 87.4 349.1 DIAMONDS Production ('000 carats) Argyle 100% 6,909 6,004 9,690 8,307 3,612 30,910 Diavik 60% 247 512 880 661 922 2,300 Merlin 100% - 44 18 - - 62 Rio Tinto total diamond production 7,156 6,560 10,588 8,968 4,534 33,272 GOLD Mine production ('000 ounces) Alumbrera (d) 0% 31 - - - - 31 Barneys Canyon 100% 9 10 10 6 7 35 Bingham Canyon 100% 67 67 79 92 69 305 Cortez/Pipeline 40% 127 102 100 106 113 434 Escondida 30% 11 13 16 16 18 55 Grasberg - FCX (e) 0% 89 132 107 26 14 354 Grasberg - Joint Venture (e) 40% 163 241 223 96 6 722 Greens Creek 70% 16 19 17 17 16 70 Kelian 90% 166 112 71 74 69 422 Lihir (g) 14% 21 21 21 25 16 88 Morro do Ouro 51% 25 27 24 26 25 103 Northparkes 80% 8 7 9 15 17 39 Peak (d) 0% 20 - - - - 20 Rawhide 51% 7 9 9 8 7 32 Rio Tinto Zimbabwe 56% 3 4 3 3 3 14 Others - 1 2 2 2 2 7 Rio Tinto total mine production 765 765 691 511 381 2,731 Refined production ('000 ounces) Kennecott Utah Copper 100% 96 65 66 81 81 308 IRON ORE Production ('000 tonnes) Channar 60% 1,699 1,465 1,628 1,417 1,404 6,208 Corumba 100% 221 282 292 279 268 1,074 Hamersley 100% 13,616 15,900 16,079 17,462 14,410 63,056 Iron Ore Company of Canada (h) 59% 1,816 2,126 2,220 2,191 1,969 8,353 Robe River 53% 5,815 5,851 5,607 6,649 5,447 23,922 Rio Tinto total mine production 23,167 25,623 25,826 27,997 23,499 102,613 Mine production figures for metals refer to the total quantity of metal produced in concentrates or dore bullion irrespective of whether these products are then refined on-site, except for the data for iron ore which represent production of saleable quantities of ore plus pellets. See footnotes on page 12. RIO TINTO SHARE OF PRODUCTION (continued) FULL Rio Tinto 1Q 2Q 3Q 4Q 1Q YEAR interest 2003 2003 2003 2003 2004 2003 LEAD Mine production ('000 tonnes) Greens Creek 70% 3.8 4.0 4.0 4.1 3.3 15.8 Zinkgruvan (i) 100% 6.2 7.5 8.0 10.1 7.0 31.8 Rio Tinto total mine production 10.0 11.5 12.0 14.2 10.3 47.6 MOLYBDENUM Mine production ('000 tonnes) Bingham Canyon 100% 1.2 1.1 1.2 1.1 1.6 4.6 NICKEL Nickel in matte (tonnes) Fortaleza (j) 0% 2,619 523 1,284 1,524 - 5,950 Toll refined metal production (tonnes) Rio Tinto Zimbabwe - Empress 56% 604 830 1,029 1,011 971 3,474 SALT Production ('000 tonnes) Dampier Salt 65% 970 1,124 1,420 1,120 1,133 4,633 SILVER Mine production ('000 ounces) Bingham Canyon 100% 762 808 873 1,105 730 3,548 Escondida 30% 315 360 375 368 411 1,418 Grasberg - FCX (e) 0% 236 255 207 46 79 745 Grasberg - Joint Venture (e) 40% 111 229 320 466 13 1,126 Greens Creek 70% 1,750 1,968 2,472 2,035 1,761 8,226 Zinkgruvan (i) 100% 363 447 460 571 426 1,841 Others - 422 343 275 366 346 1,407 Rio Tinto total mine production 3,960 4,410 4,983 4,959 3,766 18,311 Refined production ('000 ounces) Kennecott Utah Copper 100% 975 644 691 653 778 2,963 TALC Production ('000 tonnes) Luzenac Group 99.9% 358 328 350 321 356 1,357 TIN Mine production (tonnes) Neves Corvo (f) 49% - 23 16 60 21 100 TITANIUM DIOXIDE FEEDSTOCK Production ('000 tonnes) Rio Tinto Iron & Titanium 100% 290 319 291 293 287 1,192 URANIUM Production (tonnes U3O8) Energy Resources of Australia 68% 859 1,019 775 858 809 3,512 Rossing 69% 14 465 620 548 622 1,647 Rio Tinto total uranium production 873 1,484 1,395 1,406 1,431 5,158 ZINC Mine production ('000 tonnes) Greens Creek 70% 12.1 13.4 11.7 11.3 10.7 48.5 Zinkgruvan (i) 100% 14.7 15.6 15.1 19.1 19.2 64.5 Rio Tinto total mine production 26.8 29.0 26.8 30.4 29.9 113.0 Mine production figures for metals refer to the total quantity of metal produced in concentrates or dore bullion irrespective of whether these products are then refined on-site. The nickel in matte production reflects the contained tonnage of nickel. See footnotes on page 12. RIO TINTO SHARE OF PRODUCTION (continued) Production data notes (a) In December 2003, Pacific Coal was renamed Rio Tinto Coal Australia. (b) Rio Tinto had a 50% share in Kaltim Prima and, under the terms of its Coal Agreement, the Indonesian Government was entitled to a 13.5% share of Kaltim Prima's production. Rio Tinto's share of production shown is before deduction of the Government share. Rio Tinto completed the sale of its interest in PT Kaltim Prima Coal on 10 October 2003. Production data are shown up to the date of sale. (c) Kennecott Energy has a partnership interest in the Colowyo mine but, as it is responsible under a management agreement for the operation of the mine, all of Colowyo's output is included in Rio Tinto's share of production. (d) Rio Tinto completed the sale of its 25% interest in Minera Alumbrera together with its wholly owned Peak Gold Mine on 17 March 2003. Production data are shown up to the date of sale. (e) From mid 1995 until 30 March 2004, Rio Tinto held 23.93 million shares of Freeport-McMoRan-Copper & Gold (FCX) common stock from which it derived a share of production. This interest was sold to FCX on 30 March 2004. Also through a joint venture agreement with FCX, Rio Tinto is entitled, as shown separately in the above tables, to 40% of additional material mined as a consequence of expansions and developments of the Grasberg facilities since 1998. (f) Rio Tinto announced on 10 March 2004 that, subject to certain approvals, it had reached an agreement to sell its 49% interest in Somincor's Neves Corvo mine. (g) Following a placement of shares on 13 November 2003, and a subsequent allotment of shares under a Share Purchase Plan on 23 January 2004, Rio Tinto's interest in Lihir changed from 16.3% to 14.4%. (h) Rio Tinto owns 20.3% of the Labrador Iron Ore Royalty Income Fund. The Fund has a shareholding in Iron Ore Company of Canada but this has not been included in the calculation of tonnage attributable to Rio Tinto. (i) Rio Tinto announced on 4 March 2004 that it intends to sell the Zinkgruvan mine. (j) Rio Tinto completed the sale of its 100% interest in the Fortaleza nickel mine on 16 January 2004. The sale was effective from 1 January 2004. Where Rio Tinto's beneficial interest in an operation has changed, as indicated above, the share of production has been calculated using the weighted average interest over the relevant periods. Rio Tinto percentage interest shown above is at 31 March 2004. RIO TINTO OPERATIONAL DATA FULL Rio Tinto 1Q 2Q 3Q 4Q 1Q YEAR interest 2003 2003 2003 2003 2004 2003 ALUMINIUM Rio Tinto Aluminium Weipa mine 100.0% Queensland, Australia Beneficiated bauxite production ('000 tonnes) 2,901 3,057 2,895 3,045 2,887 11,898 Metal grade bauxite shipments ('000 tonnes) 2,778 2,768 2,709 3,160 2,981 11,415 Calcined bauxite production ('000 tonnes) 41 49 42 29 44 161 Boke mine 4.0% Guinea Bauxite production ('000 tonnes) 2,365 3,077 2,970 3,648 2,826 12,060 Eurallumina refinery 56.2% Sardinia, Italy Alumina production ('000 tonnes) 248 243 267 263 258 1,021 Queensland Alumina refinery 38.6% Queensland, Australia Alumina production ('000 tonnes) 916 928 906 980 954 3,731 Anglesey Aluminium smelter 51.0% United Kingdom Primary aluminium production ('000 tonnes) 35.8 35.9 35.9 37.2 35.9 144.8 Bell Bay smelter 100.0% Tasmania, Australia Primary aluminium production ('000 tonnes) 40.7 41.8 42.3 41.9 41.8 166.6 Boyne Island smelter 59.4% Queensland, Australia Primary aluminium production ('000 tonnes) 129.7 129.0 128.5 133.8 134.7 520.9 Tiwai Point smelter 79.4% New Zealand Primary aluminium production ('000 tonnes) 83.3 78.2 85.0 87.9 87.1 334.4 Rio Tinto Aluminium share Share of primary aluminium sales ('000 tonnes) 191.1 210.6 205.1 213.1 203.5 820.0 BORATES Rio Tinto Borax 100.0% California, US and Argentina Borates ('000 tonnes) (a) 139 143 142 134 134 559 (a) Production is expressed as B2O3 content. Rio Tinto percentage interest shown above is at 31 March 2004. The data represent full production and sales on a 100% basis unless otherwise stated. RIO TINTO OPERATIONAL DATA FULL Rio Tinto 1Q 2Q 3Q 4Q 1Q YEAR interest 2003 2003 2003 2003 2004 2003 COAL Coal & Allied Industries Limited Bengalla mine 30.3% New South Wales, Australia Thermal coal production ('000 tonnes) 1,298 1,776 1,122 2,008 1,075 6,203 Hunter Valley Operations 75.7% New South Wales, Australia Thermal coal production ('000 tonnes) 2,363 2,136 2,028 2,620 2,255 9,146 Semi-soft coking coal production ('000 tonnes) 800 805 875 381 371 2,862 Mount Thorley Operations 60.6% New South Wales, Australia Thermal coal production ('000 tonnes) 510 361 416 433 535 1,720 Semi-soft coking coal production ('000 tonnes) 356 330 369 377 137 1,432 Warkworth mine 42.1% New South Wales, Australia Thermal coal production ('000 tonnes) 1,634 1,152 1,212 1,371 1,256 5,369 Semi-soft coking coal production ('000 tonnes) 112 168 127 93 198 500 Total coal production ('000 tonnes) 7,074 6,728 6,147 7,284 5,826 27,232 Total coal sales ('000 tonnes) (a) 7,174 6,633 6,802 7,278 6,424 27,887 Coal & Allied Industries share Share of coal production ('000 tonnes) 5,346 4,937 4,723 5,266 4,401 20,272 Share of coal sales ('000 tonnes) (a) 5,463 4,987 5,178 5,456 4,776 21,084 (a) Sales relate only to coal mined by the operations and exclude traded coal. Kaltim Prima Coal (a) Indonesia 0.0% Thermal coal: Production ('000 tonnes) 4,177 4,675 3,422 381 - 12,655 Shipments ('000 tonnes) 4,522 3,937 4,042 309 - 12,810 (a) Rio Tinto completed the sale of its 50% interest in PT Kaltim Prima Coal on 10 October 2003. Production data are shown up to the date of sale. Kennecott Energy and Coal Company Antelope mine 100.0% Wyoming, US Thermal coal production ('000 tonnes) 6,233 6,648 7,130 6,795 5,919 26,806 Colowyo mine (a) Colorado, US Thermal coal production ('000 tonnes) 1,110 1,194 1,093 1,138 1,467 4,535 Cordero Rojo mine 100.0% Wyoming, US Thermal coal production ('000 tonnes) 8,187 8,535 7,448 8,501 8,589 32,671 Decker mine 50.0% Montana, US Thermal coal production ('000 tonnes) 1,357 1,460 2,135 2,406 1,028 7,358 Jacobs Ranch mine 100.0% Wyoming, US Thermal coal production ('000 tonnes) 7,402 7,544 8,767 8,706 8,649 32,418 Spring Creek mine 100.0% Montana, US Thermal coal production ('000 tonnes) 1,814 2,293 1,887 2,074 2,265 8,069 Total coal production ('000 tonnes) 26,103 27,674 28,459 29,620 27,917 111,856 Total coal sales ('000 tonnes) 26,103 27,674 28,459 29,620 27,917 111,856 (a) Kennecott Energy has a partnership interest in the Colowyo mine but, as it is responsible under a management agreement for the operation of the mine, all of Colowyo's output is included in Rio Tinto's share of production. Rio Tinto percentage interest shown above is at 31 March 2004. The data represent full production and sales on a 100% basis unless otherwise stated. RIO TINTO OPERATIONAL DATA FULL Rio Tinto 1Q 2Q 3Q 4Q 1Q YEAR interest 2003 2003 2003 2003 2004 2003 COAL (continued) Rio Tinto Coal Australia (a) Blair Athol Coal mine 71.2% Queensland, Australia Thermal coal: Production ('000 tonnes) 3,140 2,607 3,649 3,084 3,060 12,480 Sales ('000 tonnes) 3,237 2,689 3,179 3,473 2,867 12,577 Hail Creek Coal mine 92.0% Queensland, Australia Coking coal: Production ('000 tonnes) - - 221 661 903 883 Sales ('000 tonnes) - - 114 622 890 736 Kestrel Coal mine 80.0% Queensland, Australia Thermal coal: Production ('000 tonnes) 356 400 328 365 122 1,449 Sales ('000 tonnes) 404 163 145 177 - 889 Coking coal: Production ('000 tonnes) 458 574 415 427 462 1,873 Sales ('000 tonnes) 122 274 331 357 409 1,084 Semi-hard coking coal:(b) Sales ('000 tonnes) 449 475 353 461 225 1,739 Tarong Coal mine 100.0% Queensland, Australia Thermal coal: Production ('000 tonnes) 1,451 1,738 1,635 1,713 1,686 6,538 Sales ('000 tonnes) 1,635 1,614 1,623 1,749 1,749 6,620 Total coal production ('000 tonnes) 5,405 5,319 6,248 6,250 6,233 23,222 Total coal sales ('000 tonnes) 5,846 5,215 5,746 6,839 6,140 23,646 Rio Tinto Coal Australia share Share of coal production ('000 tonnes) 4,339 4,374 5,033 5,152 5,164 18,898 Share of coal sales ('000 tonnes) 4,720 4,259 4,656 5,591 5,118 19,227 (a) Rio Tinto Coal Australia was previously known as Pacific Coal. (b) Semi-hard coking coal is a mixture of thermal coal and coking coal. The product mix is customer dependent. COPPER & GOLD Alumbrera (a) 0.0% Argentina Ore treated ('000 tonnes) 7,053 - - - - 7,053 Average ore grades: Copper (%) 0.54 - - - - 0.54 Gold (g/t) 0.69 - - - - 0.69 Concentrates produced ('000 tonnes) 130.9 - - - - 130.9 Copper in concentrates: - Production ('000 tonnes) 34.9 - - - - 34.9 Sales ('000 tonnes) 37.0 - - - - 37.0 Production of gold in concentrates ('000 108 - - - - 108 ounces) Production of gold in dore ('000 ounces) 16 - - - - 16 Total gold sales ('000 ounces) 132 - - - - 132 (a) Rio Tinto completed the sale of its 25% holding in Minera Alumbrera on 17 March 2003. Rio Tinto percentage interest shown above is at 31 March 2004. The data represent full production and sales on a 100% basis unless otherwise stated. RIO TINTO OPERATIONAL DATA FULL Rio Tinto 1Q 2Q 3Q 4Q 1Q YEAR interest 2003 2003 2003 2003 2004 2003 COPPER & GOLD (continued) Escondida 30.0% Chile Sulphide ore treated ('000 tonnes) 16,744 16,416 18,888 18,299 19,619 70,347 Average copper grade (%) 1.49 1.62 1.33 1.31 1.48 1.43 Mill production (metals in concentrates): Contained copper ('000 tonnes) 210.8 230.9 208.2 197.1 239.6 847.0 Contained gold ('000 ounces) 37 43 52 52 58 184 Contained silver ('000 ounces) 1,050 1,200 1,251 1,227 1,370 4,728 Oxide ore treated ('000 tonnes) 3,408 3,188 3,569 3,537 3,179 13,702 Average copper grade (%) 1.10 1.11 1.02 1.03 1.25 1.06 Contained copper in leachate/mined material ('000 37 35 37 37 40 146 tonnes) Refined production: Oxide plant production ('000 tonnes) 35.5 36.8 37.3 38.0 37.7 147.6 Freeport-McMoRan Copper & Gold (a) Grasberg mine 0.0% Papua, Indonesia Ore treated ('000 tonnes) 21,438 20,141 19,453 13,071 13,817 74,103 Average mill head grades: Copper (%) 1.15 1.24 1.08 0.77 0.50 1.09 Gold (g/t) 1.26 1.95 1.79 1.00 0.41 1.54 Silver (g/t) 3.88 4.18 3.90 4.26 3.09 4.03 Production of metals in concentrates: Copper in concentrates ('000 tonnes) 216.5 223.1 189.3 86.9 55.9 715.8 Gold in concentrates ('000 ounces) 760 1,126 1,007 369 135 3,262 Silver in concentrates ('000 ounces) 1,692 1,944 1,857 981 740 6,474 Sales of payable metals in concentrates: (b) Copper in concentrates ('000 tonnes) 210.7 212.1 184.7 85.5 53.0 693.0 Gold in concentrates ('000 ounces) 742 1,080 980 369 130 3,171 Silver in concentrates ('000 ounces) 1,315 1,485 1,431 763 563 4,994 (a) See note (e) on page 12 for details of Rio Tinto's changed interest in Freeport-McMoRan Copper & Gold and 40% interest in the expansion of Grasberg. (b) Net of smelter deductions. Atlantic Copper smelter 0.0% Spain Concentrates and scrap smelted ('000 tonnes) 242.1 244.6 253.0 224.7 187.1 964.4 Copper anodes produced ('000 tonnes) (c) 72.4 74.3 78.6 65.0 57.5 290.3 Copper cathodes produced ('000 tonnes) 61.2 62.5 61.4 62.0 58.4 247.1 Copper cathode sales ('000 tonnes) (d) 62.9 63.6 57.7 63.8 50.8 248.0 (c) New metal excluding recycled material. (d) Refers to copper cathode and wire rod sales. Kelian Equatorial Mining 90.0% East Kalimantan, Indonesia Ore treated ('000 tonnes) 1,844 1,833 1,995 2,180 2,119 7,853 Average ore grades: Gold (g/t) 3.71 2.53 1.76 1.66 1.57 2.37 Silver (g/t) 5.83 5.11 4.39 4.40 3.94 4.90 Production: Gold ('000 ounces) 184 124 79 82 76 469 Silver ('000 ounces) 112 96 66 73 64 347 Sales: Gold ('000 ounces) 150 147 93 47 113 437 Silver ('000 ounces) 154 - 145 - 148 299 Rio Tinto percentage interest shown above is at 31 March 2004. The data represent full production and sales on a 100% basis unless otherwise stated. RIO TINTO OPERATIONAL DATA FULL Rio Tinto 1Q 2Q 3Q 4Q 1Q YEAR interest 2003 2003 2003 2003 2004 2003 COPPER & GOLD (continued) Kennecott Minerals Company Cortez/Pipeline mine 40.0% Nevada, US Ore treated Milled ('000 tonnes) 919 791 865 878 781 3,452 Leached ('000 tonnes) 2,538 3,261 5,507 6,161 9,246 17,468 Sold for roasting ('000 tonnes) 140 151 111 62 96 463 Average ore grade: gold Milled (g/t) 8.92 5.83 5.55 5.61 6.14 6.53 Leached (g/t) 1.09 1.06 0.85 0.78 0.77 0.90 Sold for roasting (g/t) 7.83 6.63 5.87 5.86 5.90 6.71 Gold produced ('000 ounces) 317 254 249 264 283 1,085 Greens Creek mine 70.3% Alaska, US Ore treated ('000 tonnes) 171 176 185 177 182 709 Average ore grades: Gold (g/t) 6.31 6.97 6.20 6.19 5.86 6.42 Silver (g/t) 604 655 764 671 572 675 Zinc (%) 12.9 13.4 11.1 11.8 10.7 12.3 Lead (%) 4.6 4.7 4.3 4.7 3.9 4.6 Metals produced in concentrates: Gold ('000 ounces) 23 27 25 24 23 99 Silver ('000 ounces) 2,491 2,801 3,518 2,897 2,506 11,707 Zinc ('000 tonnes) 17.3 19.0 16.6 16.1 15.3 69.1 Lead ('000 tonnes) 5.3 5.7 5.6 5.9 4.6 22.5 Rawhide mine (a) 51.0% Nevada, US Ore treated ('000 tonnes) 1,230 384 - - - 1,614 Average ore grades: Gold (g/t) 0.51 0.51 - - - 0.51 Silver (g/t) 9.4 9.1 - - - 9.4 Metals produced in dore: Gold ('000 ounces) 14 17 17 15 13 64 Silver ('000 ounces) 127 158 131 114 108 530 (a) Mining operations were completed in October 2002 and processing of stockpiled ores was completed in May 2003. Residual gold and silver production continues from the leach pads. Rio Tinto percentage interest shown above is at 31 March 2004. The data represent full production and sales on a 100% basis unless otherwise stated. RIO TINTO OPERATIONAL DATA FULL Rio Tinto 1Q 2Q 3Q 4Q 1Q YEAR interest 2003 2003 2003 2003 2004 2003 COPPER & GOLD (continued) Kennecott Utah Copper Barneys Canyon mine (a) 100.0% Utah, US Gold produced ('000 ounces) 9 10 10 6 7 35 (a) Mining operations ceased in the first quarter of 2002. Gold continues to be recovered from leach pads. Bingham Canyon mine 100.0% Utah, US Ore treated ('000 tonnes) 10,929 11,284 11,904 11,988 10,497 46,105 Average ore grade: Copper (%) 0.68 0.67 0.72 0.64 0.64 0.67 Gold (g/t) 0.28 0.25 0.31 0.31 0.28 0.29 Silver (g/t) 2.99 2.67 2.88 3.53 2.74 3.02 Molybdenum (%) 0.022 0.020 0.028 0.038 0.027 0.027 Copper concentrates produced ('000 tonnes) 282 287 298 280 262 1,147 Average concentrate grade (% Cu) 22.9 23.6 25.9 25.5 23.9 24.5 Production of metals in copper concentrates: Copper ('000 tonnes) (b) 64.8 67.8 77.6 71.6 62.5 281.8 Gold ('000 ounces) 67 67 79 92 69 305 Silver ('000 ounces) 762 808 873 1,105 730 3,548 Molybdenum concentrates produced ('000 2.2 2.3 2.1 2.2 3.0 8.8 tonnes): Molybdenum in concentrates ('000 tonnes) 1.2 1.1 1.2 1.1 1.6 4.6 Kennecott smelter & refinery 100.0% Copper concentrates smelted ('000 tonnes) 231 261 282 286 279 1,060 Copper anodes produced ('000 tonnes) (c) 53.7 53.2 69.9 66.3 54.4 243.1 Production of refined metal: Copper ('000 tonnes) 67.4 38.5 64.8 59.9 60.3 230.6 Gold ('000 ounces) (d) 96 65 66 81 81 308 Silver ('000 ounces) (d) 975 644 691 653 778 2,963 (b) Includes a small amount of copper in precipitates. (c) New metal excluding recycled material. (d) Includes gold and silver in intermediate products. Lihir Gold 14.4% Papua New Guinea Ore treated ('000 tonnes) 933 924 987 1,082 807 3,926 Average ore grade: gold (g/t) 4.92 4.65 4.88 5.26 5.12 4.94 Gold produced ('000 ounces) (b) 131 128 132 160 112 551 (a) Following a placement of shares on 13 November 2003, and a subsequent allotment of shares under a Share Purchase Plan on 23 January 2004, Rio Tinto's interest in Lihir changed from 16.3% to 14.4%. (b) Gold production represents quantity of gold poured. Northparkes Joint Venture 80.0% New South Wales, Australia Ore treated ('000 tonnes) 1,306 1,315 1,284 1,263 1,275 5,168 Average ore grades: Copper (%) 0.67 0.62 0.70 0.71 0.78 0.67 Gold (g/t) 0.31 0.32 0.45 0.70 0.73 0.44 Copper concentrates produced ('000 tonnes) 20.1 18.7 18.3 17.9 19.3 75.1 Contained copper in concentrates: Saleable production ('000 tonnes) 7.1 6.8 6.7 6.5 7.3 27.1 Sales ('000 tonnes) (a) 8.0 3.8 4.5 6.2 2.8 22.5 Contained gold in concentrates: Saleable production ('000 ounces) 9.5 9.0 11.4 18.7 21.0 48.6 Sales ('000 ounces) (a) 13.4 6.0 6.4 12.4 8.7 38.2 (a) Rio Tinto's 80% share of material from the Joint Venture. Rio Tinto percentage interest shown above is at 31 March 2004. The data represent full production and sales on a 100% basis unless otherwise stated. RIO TINTO OPERATIONAL DATA FULL Rio Tinto 1Q 2Q 3Q 4Q 1Q YEAR interest 2003 2003 2003 2003 2004 2003 COPPER & GOLD (continued) Palabora 49.2% Palabora mine South Africa Ore treated ('000 tonnes) 2,453 2,726 3,398 2,838 2,101 11,415 Average ore grade: copper (%) 0.59 0.60 0.53 0.63 0.76 0.59 Copper concentrates produced ('000 tonnes) 35.3 38.2 43.5 46.3 35.9 163.3 Average concentrate grade: copper (%) 31.5 32.7 32.9 31.3 29.7 32.1 Copper in concentrates ('000 tonnes) 11.1 12.5 14.3 14.5 10.7 52.4 Palabora smelter/refinery New concentrate smelted on site ('000 tonnes) 57.5 73.7 64.0 72.5 59.4 267.6 New copper anodes produced ('000 tonnes) 15.8 20.1 19.4 21.3 15.8 76.7 Refined new copper produced ('000 tonnes) 15.9 19.2 17.4 20.9 17.9 73.4 By-products: Magnetite concentrate ('000 tonnes) 44 51 53 68 105 215 Refined nickel sulphate (tonnes) 61 27 26 38 53 152 Vermiculite plant Vermiculite produced ('000 tonnes) 51.2 53.9 32.5 35.6 38.4 173.2 Peak Gold Mine (a) 0.0% New South Wales, Australia Ore treated ('000 tonnes) 144 - - - - 144 Average ore grades: - Gold (g/t) 5.23 - - - - 5.23 Silver (g/t) 3.16 - - - - 3.16 Copper (%) 0.13 - - - - 0.13 Lead (%) 0.11 - - - - 0.11 Zinc (%) 0.00 - - - - 0.00 Bullion produced ('000 ounces) 23 - - - - 23 Containing: - Gold ('000 ounces) 20 - - - - 20 Silver ('000 ounces) 3 - - - - 3 Gold recovered in concentrates ('000 ounces) - - - - - - Total gold production ('000 ounces) 20 - - - - 20 Bullion sales (fine gold) ('000 ounces) 20 - - - - 20 (a) Rio Tinto completed the sale of its wholly owned Peak Gold Mine on 17 March 2003. Rio Tinto Brasil Limitada Morro do Ouro mine 51.0% Minas Gerais, Brazil Ore treated ('000 tonnes) 4,530 4,586 4,655 4,640 4,499 18,411 Average ore grade: gold (g/t) 0.44 0.46 0.45 0.43 0.45 0.44 Refined gold produced ('000 ounces) 49 53 48 51 50 201 Rio Tinto percentage interest shown above is at 31 March 2004. The data represent full production and sales on a 100% basis unless otherwise stated. RIO TINTO OPERATIONAL DATA FULL Rio Tinto 1Q 2Q 3Q 4Q 1Q YEAR interest 2003 2003 2003 2003 2004 2003 COPPER & GOLD (continued) Rio Tinto Zimbabwe Patchway mine (a) 0.0% Zimbabwe Ore treated ('000 tonnes) 19 19 - - - 38 Average ore grade: gold (g/t) 2.17 2.10 - - - 2.13 Total gold produced ('000 ounces) 1 1 - - - 2 Renco mine 56.0% Zimbabwe Ore treated ('000 tonnes) 49 60 64 61 61 234 Average ore grade: gold (g/t) 3.80 3.55 3.48 3.56 3.13 3.59 Total gold produced ('000 ounces) 5 6 6 6 5 23 Total Rio Tinto Zimbabwe Total gold produced ('000 ounces) 6 7 6 6 5 25 (a) Rio Tinto Zimbabwe completed the sale of the Patchway mine in July 2003. Somincor (a) Neves Corvo mine 49.0% Portugal Total ore treated ('000 tonnes) (b) 425 474 354 447 448 1,700 of which, treated to extract tin ('000 - 8 4 10 5 22 tonnes) Average ore grades: Copper (%) 6.00 5.07 5.13 5.15 6.02 5.33 Tin (%) - 1.74 2.26 2.46 2.15 2.16 Copper production: Copper concentrates produced ('000 tonnes) 93.8 85.5 66.2 84.0 100.1 329.6 Copper concentrate grade: copper (%) 23.9 23.5 23.2 23.4 23.7 23.5 Copper in concentrates produced ('000 22.4 20.1 15.4 19.6 23.7 77.5 tonnes) Tin production: Tin concentrates produced ('000 tonnes) - 0.1 0.1 0.2 0.1 0.3 Tin concentrate grade: tin (%) - 54.1 60.7 64.3 63.9 61.0 Tin in concentrates produced ('000 tonnes) - 0.0 0.0 0.1 0.0 0.2 (a) Rio Tinto announced on 10 March 2004 that, subject to certain approvals, it had reached agreement to sell its 49% share in Somincor. (b) Total ore treated for both copper and tin production. DIAMONDS Argyle Diamonds 100.0% Western Australia AK1 ore processed ('000 tonnes) 2,509 2,305 2,601 2,372 2,066 9,787 AK1 Diamonds produced ('000 carats) 6,909 6,004 9,690 8,307 3,612 30,910 Diavik Diamonds 60.0% Northwest Territories, Canada Ore processed ('000 tonnes) 202 304 388 300 394 1,194 Diamonds recovered ('000 carats) 411 854 1,466 1,101 1,537 3,833 Merlin (a) 100.0% Northern Territory, Australia Ore processed ('000 tonnes) 204 33 - - - 237 Diamonds recovered ('000 carats) - 44 18 - - 62 (a) Ore mining and processing ceased during the second quarter of 2003. Rio Tinto percentage interest shown above is at 31 March 2004. The data represent full production and sales on a 100% basis unless otherwise stated. RIO TINTO OPERATIONAL DATA FULL Rio Tinto 1Q 2Q 3Q 4Q 1Q YEAR interest 2003 2003 2003 2003 2004 2003 IRON ORE Hamersley Iron Western Australia Saleable iron ore production ('000 tonnes): Paraburdoo, Mount Tom Price, 100.0% Marandoo, Yandicoogina and Brockman 13,616 15,900 16,079 17,462 14,410 63,056 Channar 60.0% 2,832 2,442 2,713 2,361 2,341 10,347 Total production ('000 tonnes) 16,448 18,341 18,792 19,823 16,751 73,404 Total sales ('000 tonnes) (a) 17,762 17,948 18,636 19,987 17,664 74,333 (a) Sales represent iron ore exported from Western Australian ports (previously reported as Total shipments). Iron Ore Company of Canada Newfoundland & Labrador and Quebec in Canada Carol Lake operations 58.7% Saleable iron ore production: Concentrates ('000 tonnes) 272 712 958 706 462 2,648 Pellets ('000 tonnes) 2,820 2,908 2,823 3,026 2,892 11,577 Sales: Concentrate ('000 tonnes) 290 570 664 1,093 431 2,617 Pellets ('000 tonnes) 1,963 3,761 2,820 3,767 2,072 12,311 Rio Tinto Brasil Corumba mine 100.0% Mato Grosso do Sul, Brazil Saleable iron ore production ('000 tonnes) (a) 221 282 292 279 268 1,074 (a) Production includes by-product fines. Robe River Iron Associates Pannawonica mine 53.0% Western Australia Saleable iron ore production ('000 tonnes) 8,055 8,361 7,583 8,035 6,281 32,034 Sales ('000 tonnes) 7,054 8,137 8,413 7,470 7,325 31,073 West Angelas mine 53.0% Western Australia Saleable iron ore production ('000 tonnes) 2,917 2,678 2,996 4,510 3,997 13,102 Sales ('000 tonnes) 2,908 2,943 2,585 4,350 4,742 12,785 NICKEL Rio Tinto Brasil Fortaleza mine 0.0% Brazil Production (tonnes) 2,619 523 1,284 1,524 - 5,950 (a) Rio Tinto completed the sale of its 100% interest in the Fortaleza nickel mine on 16 January 2004. The sale was effective from 1 January 2004. Rio Tinto Zimbabwe Empress Nickel refinery 56.0% Zimbabwe Production (tonnes) 1,078 1,481 1,836 1,804 1,733 6,199 SALT Dampier Salt 64.9% Western Australia Salt production ('000 tonnes) 1,493 1,731 2,186 1,725 1,745 7,135 Rio Tinto percentage interest shown above is at 31 March 2004. The data represent full production and sales on a 100% basis unless otherwise stated. RIO TINTO OPERATIONAL DATA FULL Rio Tinto 1Q 2Q 3Q 4Q 1Q YEAR interest 2003 2003 2003 2003 2004 2003 TALC The Luzenac Group 99.9% Australia, Europe, and North America Talc production ('000 tonnes) 358 329 350 321 356 1,358 TITANIUM DIOXIDE FEEDSTOCK Rio Tinto Iron & Titanium 100.0% Canada and South Africa (Rio Tinto share) Titanium dioxide feedstock production ('000 tonnes) 290 319 291 293 287 1,192 URANIUM Energy Resources of Australia Ltd Ranger mine 68.4% Northern Territory, Australia Production (tonnes U3O8) 1,256 1,490 1,133 1,255 1,183 5,134 Rossing Uranium Ltd 68.6% Namibia Production (tonnes U3O8) 20 678 904 799 907 2,401 ZINC Zinkgruvan Mining AB 100.0% Sweden Ore treated ('000 tonnes) 167 189 191 227 196 774 Average ore grades: Zinc (%) 9.5 9.1 8.8 9.3 10.6 9.2 Lead (%) 4.3 4.4 4.8 5.3 4.2 4.7 Silver (g/t) 99 101 102 105 95 103 Production of zinc concentrate ('000 tonnes) 26.3 28.2 27.5 35.0 34.8 117.0 Production of lead concentrate ('000 tonnes) 9.1 11.0 11.3 14.4 9.9 45.8 Production of metal in concentrates: Zinc ('000 tonnes) 14.7 15.6 15.1 19.1 19.2 64.5 Lead ('000 tonnes) 6.2 7.5 8.0 10.1 7.0 31.8 Silver ('000 ounces) 363 447 460 571 426 1,841 (a) Rio Tinto announced on 4 March 2004 that it intends to sell the Zinkgruvan mine. Rio Tinto percentage interest shown above is at 31 March 2004. The data represent full production and sales on a 100% basis unless otherwise stated. This information is provided by RNS The company news service from the London Stock Exchange

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