Ivanhoe Australia Ltd's (ASX:IVA) objective is to build a substantial Australian-based company focused on the exploration and development of its portfolio of mineral projects. Planning for the development of four separate projects is underway on projects containing molybdenum, rhenium, copper, gold, zinc, silver and uranium. The Cloncurry project has been the subject of exploration and mining activities by a number of companies over the past 100 years. Open cut mining of oxide gold deposits was commenced along the Starra Line in 1988 by Armico Mining, and subsequently underground mining produced copper/gold concentrate from sulphide ore. Development of a modern underground mine at Mount Elliott began in 1993. Ivanhoe Australia impressed the market this week with a progressive drilling report that lifted its share price. It intercepted high-grade molybdenum and rhenium results in the Merlin project and Ivanhoe's Cloncurry tenements in northwestern Queensland. Chief executive officer Peter Reeve said the Merlin discovery had now been tested by about 90 drill holes and the assay results of 75 drill holes have been returned. The Merlin mineralised zone is a clearly defined, high-grade body of molybdenum (Mo) and rhenium (Re) sulphide mineralisation starting at a depth of about 100 metres and extending down dip for over 400 metres, with an indicated strike length of up to 900 metres. He said results from this recent drilling defined the highest-grade zone of Merlin encountered so far and exceed the tenor of the initial Merlin results released in December. The most significant are: * MDQ0115 - 38 m @ 1.20pc Mo, 17.29 g/t Re and 0.17pc Cu, from 246 metres; * MDQ0119 - 58 m @ 2.25pc Mo, 28.99 g/t Re and 0.09pc Cu, from 408 metres, including - 20 m @ 6.26pc Mo, 81.83 g/t Re and 0.14pc Cu, from 408 metres; * MDQ0128 - 24 m @ 1.07pc Mo, 16.96 g/t Re and 0.11pc Cu, from 190 metres; and * MDQ0132 - 50 m @ 1.60pc Mo, 24.34 g/t Re and 0.12pc Cu, from 350 metres. The company said such high-grade intercepts in these high-value metals provides it with an outstanding potential development project. "What makes this project all the more interesting is that rhenium is quite a remarkable metal and we have found one of the world's highest-grade sources of the metal," Mr Reeve said. "Rhenium is a very tight market, with 90 per cent of production sold on long-term contracts to three major companies, and it trades for over $US10,000 per kilogram (about $US300 per oz) on the spot market," Mr Reeve declared. Rhenium is a very rare silvery metal that often occurs with, and is recovered with, molybdenum. It was first identified in 1925 by German scientists, claiming it is the last naturally occurring chemical element to be discovered. Current global production totals only approximately 50 tonnes each year. An estimated 77 per cent of rhenium is used in super-alloys and 15 per cent is used in petroleum catalysts. Chile is the world's largest rhenium producer (28 tonnes in 2007), followed by the US and Kazakhstan. World Reserves are approximately 10,000 tonnes, 80 per cent of which are in the US, Chile and Canada. Until recently, market deficits were filled from stockpiles in Kazakhstan that now are largely depleted. Rhenium usually is extracted from flue gases from roasting molybdenum concentrates. The smelter technology required to perform this recovery is very expensive, which is a barrier to rhenium recovery. Rhenium is used for aircraft-engine turbine blades to allow operation at higher temperatures, which also improves fuel efficiency. Rocket thrusters, chambers and nozzles made with rhenium have been tested through 100,000 thermal fatigue cycles without failing.
SHARE PRICE MOVEMENTS *********************
Shares of Ivanhoe yesterday rose 16c to $1.06, making a gain of 26c in the last two sessions. Rolling high for the half year is $1.16 and low 15c. The company has 62.6 million on issue with a market cap of $66.4 million. On January 14 Ivanhoe reported significant drill intercepts which expanded the Swan high-grade copper-gold zone at its Mount Elliott project in northwest Queensland. Mr Reeve disclosed that drilling at Swan had significantly expanded the mineralisation on the zone's eastern and western flanks. Drill hole MEQ1194 on the eastern flank intersected 342 metres @ 1.53 per cent copper equivalent (eCu) and indicates the presence of a large, near-surface zone of additional higher grade mineralisation between the Swan high-grade zone (HGZ) and the original Mount Elliott mine. The most significant new results in this zone were: (Eastern Flank) * MEQ1194 - 342 metres @ 1.21pc Cu and 0.80 g/t Au (1.53pc eCu) from 292 metres; * MEQ1196 - 114 metres @ 0.92pc Cu and 0.76 g/t Au (1.22pc eCu) from 180 metres; Western Flank * MEQ1187 - 102 metres @ 0.84pc Cu and 0.52 g/t Au (1.05pc eCu) from 612 metres; * MEQ1188 - 128 metres @ 0.82pc Cu and 0.48 g/t Au (1.01pc eCu) from 552 metres; and * MEQ1189 - 135 metres @ 1.25pc Cu and 0.76 g/t Au (1.56pc eCu) from 551 metres. Following the company's release of the initial Mount Elliott resource estimate in September, the objective of the ongoing infill drilling program has been to expand the Swan HGZ and investigate additional trends of the higher grade mineralisation. The new results highlight the strong east-west axis of the higher-grade Swan mineralisation and further indicate the possibility of connections between the Swan HGZ and the other zones, including Swell and the original Mount Elliott mine.
BACKGROUND **********
Ivanhoe Australia joined the ASX list on August 6, 2008. The company, through Ivanhoe Cloncurry Mines, acquired the IAL mining tenements in late 2003 and commenced low-level exploration over the following three years while activity was focused on Mongolia. This activity then increased following the more complete delineation of the Oyu Tolgoi orebody in Mongolia. As part of its acquisition of the IAL tenements, Ivanhoe Australia obtained an extensive and valuable database of technical information relating to the mining exploration and drilling undertaken by the previous project owners. In May 2007 an interest in EXCO Resources, which was active in the region, was acquired, and a joint venture on EXCO's southern tenements entered into. Exploration prospectivity on Ivanhoe's tenements and in the Cloncurry region remains very high. Ore from the Starra Line series of mines, Mount Elliott and, for a very short period, from two small open pits at Victoria and one open pit at Lady Ella, was treated through a mill located adjacent to the Starra Line mines. This mill has now been removed. Project production since start-up in 1988 to closure in 2003 totalled approximately 217,700 tonnes of copper and 1.02 million ounces of gold from a mined tonnage of approximately 12.9 million tonnes averaging 3.10g/t Au and 2.38pc Cu. In 2002 Selwyn Mines experienced difficulties due to ore production from the Starra and Mount Elliott mines not being able to sustain the required treatment rate during a period of low copper and gold prices. The Selwyn Mines operation closed as a consequence. Ivanhoe Australia's exploration drilling program commenced in August 2004 on the partially drilled copper gold targets at the Swan zone at Mount Elliott and secondary copper Mount Dore prospect, followed by geophysical surveys and drilling at Metal Ridge and Amethyst Castle. Strong results from the Swan zone led to Ivanhoe Australia instigating an intensive drilling program designed to test mineralisation at depth which demonstrated a style similar to the Ernest Henry mine, owned by Xstrata, to the north of Ivanhoe Australia's tenements, and the Osborne mine, owned by Barrick, to the south. The exploration pre 2006 on the tenements within the Cloncurry project was focussed on shallow drilling in the range of 200 to 400 metres. The delineation of near surface deposits underpinned the exploration strategy of previous owners which were primarily focused on generating high-grade mill feed to maintain cash flow. As a result of that approach, Ivanhoe Australia believes that the potential for larger scale IOCG targets was not tested at depth below surface indications or where geophysical surveys indicated that deposits could exist at depth. As at 30 June 2008, Ivanhoe had completed 125 holes totalling 94.6 kilometres at Mount Elliott. Recent drilling here has focussed on exploring for a link between the Mount Elliott, Swell and Swan zones at depth and to the north and infill drilling prior to resource estimation. The mineralisation encountered thus far at Mount Elliott is open to the north at depth and to the west. At Mount Dore an additional 45 diamond drill holes have now been completed since 2004 bringing the total to 104 diamond drill holes. Ivanhoe Australia has also partly completed a reverse circulation drilling program up dip and to the north of the know Mount Dore mineralisation. In total 35 holes were drilled in this program to 30 June 2008. On the Starra Line of deposits previous mining, during periods of low metal prices, concentrated on extracting thin high-grade zones within the thick mineralised ironstone rocks. Current metal prices warrant re-evaluating mining the wider zones at a lower cut-off grade. There is also an excellent potential to extend the currently defined deposits down plunge and to test at depth and along strike for new deposits.
IVA Price at posting:
$1.33 Sentiment: LT Sell Disclosure: Not Held