Acquisition

Red Rock Resources plc 03 October 2005 Red Rock Resources plc Acquisition of uranium and iron ore properties in the Northern Territory of Australia Dated: 3 October 2005 Red Rock Resources plc ('Red Rock' or the 'Company') the mineral exploration and development company focussed on advancing iron ore, uranium and manganese projects in Western Australia and in Tasmania announced today it has purchased five mining tenements in the Northern Territory of Australia from Tennant Creek Gold Limited ('TNG') for a consideration of £475,000 satisfied in full by the issue of 19,000,000 new ordinary shares in the Company ('New Shares') at 2.5p per share. The Company has made application for the New Shares to be admitted to trading on the AIM Market of the London Stock Exchange from 6 October 2005. Highlights • Red Rock acquires a portfolio of uranium/iron ore projects in Northern Territory; • Portfolio concentrated in major uranium exploration areas, Pine Creek Geosyncline and Rum Jungle Uranium Field; • Portfolio includes Woolgni/Edith River with four uranium projects identified and explored in 1950s showing disseminated mineralisation over wide area; • High grade gold trenching and rock sampling results at different prospects at Woolgni indicating up to 31 g/t gold; • Celia and Marrakai known uranium targets in prolific Rum Jungle Uranium Field; • Licenses include some well known Northern Territory iron ore resources and targets near Stuart Highway with major tonnage potential to new Darwin port facilities; and • Uranium potential of licenses previously under explored due to State Government opposition to uranium. The properties are: Woolgni / Edith River EL 23568 474.9 sq km EL 23569 1,569 sq km (including MLA 24342 over 1.64 sq km) The Woolgni and Edith River granted exploration licenses are located some 220 km south east of Darwin and 35 km south east of Pine Creek. At Edith River several uranium prospects were discovered in 1952 in an intrusion of Lower Proterozoic granite (the Cullen granite) reported to be overlain to the west of the known prospects by Cambrian sandstones. Disseminated uranium mineralisation associated with hematite and apatites was identified at four locations on shear zones and was then partially mapped by Bureau of Mines and Resources geologists: 1) the YMCA prospects, 1 to 3 miles SE of the Edith River siding; 2) the Tennysons prospects, 2 miles WSW of the Edith River siding; 3) the Hore and O'Connor's prospect, 5 miles WNW of the Edith River siding; and 4) the Yenberrie prospect, 5 miles N of the Edith River siding. The surface grade has been estimated as ranging from 0.1% to 0.2% uranium. Two occurrences at the YMCA prospects were drilled in 1954, with one drill hole each in the oxide layer and one each drilled to intersect primary mineralisation, which did not encounter significant increase in grade. United Sales International Pty in 1971 noted that the disseminated nature of the occurrences did not offer easy drill targets and recommended a study to locate areas of intersecting shears, the carrying out of low level radiometrics with ground follow-up, and the identification of areas of Cambrian and late Proterozoic sediments lying unconformably on the Cullen Granite and their testing for sedimentary deposits of uranium. Mining at Woolgni began in the late nineteenth century when alluvial gold began to be extracted. In recent times, trenching has been carried out, with results including 3m Au at 2.33 g/t, 10.7m at 4.44 g/t, and 4.3m at 5.18 g/t. Another highly anomalous gold prospect 1.5 km to the west of the Woolgni prospect has produced results in rock chip samples ranging from 0.21 g/t to 31.1 g/t Au. The licenses contain significant gold and uranium targets and further exploration is considered likely to identify additional prospect areas. The tenements lie on the Pine Creek Geosyncline near the Stuart Highway, with a gold treatment plant nearby and good infrastructure. Celia ELA 24414 13.2 sq km The Celia prospect consists of a exploration license application some 4 km east north east of the town of Batchelor in the south of the Rum Jungle Uranium Field on the contact with the granite intrusion. Previous exploration including two drill programmes has developed an indicated resource of 10m t of low silica Magnesite at 45%+ grade, with potential for expansion. There is a known gold occurrence. The area is in the heart of a major uranium mining province close to several recent uranium discoveries and with the presence of magnesite showing proximity to the redox boundary, is considered highly prospective for uranium. Over flights in the 1960s detected a number of uranium anomalies but no follow up work was carried out. The property is near the old Rum Jungle Mine and the uranium properties being developed by Compass Resources NL. Hayes Creek South ELA 24432 130.1 sq km The Hayes Creek license area is situated 160 km south-south east of Darwin and about 8 km east of the Douglas homestead. The area is a significant under explored polymetallic target centred on the Hayes Creek fault and possible related splay structures forming structural corridors. In 1969 an iron rich bed was traced over 9.65 km with rock chip samples assaying: Iron Manganese 44.9% 3.4% 49.0% 2.8% 56.3% 3.8% 14.5% 37.05% 48.0% 5.3% In 1987 rock chip samples gave highest readings of 15 g/t Au, 15 g/t Ag and 57.28% Fe. 1990 fieldwork identified three ferruginised breccia zones parallel with the fault zones, one of which forms for several hundred metres a cliff of massive hematite. Indications of uranium mineralisation, as well as possible massive high tonnage iron ore below Quaternary cover, and manganese and gold mineralisation require follow up by systematic exploration of the area. The area is considered under explored with major mineralized structural corridors hosting significant iron ore mineralisation that has never been drill-tested. Daly River ELA 24391 20.04 sq km The project is among the best known iron ore prospects in the Northern Territory, where infrastructural constraints and low iron ore prices have until recently discouraged active exploration. A large portion of this area situated near the western edge of the Pine Creek Geosyncline close to the old Stuart Highway consists of outcropping hematitic iron ore, with ironstone lenses near the base of a highly lateralized sequence of Cretaceous claystone porcellanite, siltstone and sandstone capped by remnants of nodular laterite. The iron ore occurs at surface as dark red boulders of varying size and outcrops. In 1967-8 10 percussion holes were drilled for iron ore, with phosphorus content generally under 0.1%, and resources were estimated at 126m tons. A follow-up desktop survey by the Northern Territory Mines Department concluded that the prospect potential could be 15-20m tons. Kratos Uranium NL later carried out work in the area, including drilling 15 short percussion holes totaling 225m with assays from 28.9% to 55.4% soluble iron and other assays up to 52.9% total iron. October 2004 rock chip samples taken by Tennant Creek Gold Ltd and the Senior Exploration Geologist of the Northern Territory Geological Survey over the central part of the prospect gave an average of 52% Fe. Most of the areas of potential within the prospect are barely explored, and numerous magnetic anomalies in the north of the license detected by regional wide-spaced aeromagnetics have not been systematically tested. Where the wide-spaced and shallow drilling carried out to date has intersected iron ore mineralisation, no follow-up work has been completed. Very little geological mapping or geochemical sampling has been carried out. The likelihood that further exploration would enable further substantial high grade iron ore resources to be delineated is considered to be considerable. Marrakai ELA 24614 20.3 sq km The Marrakai license lies 75 km south-east of Darwin on the eastern side of the Archaean Rum Jungle Uranium Field. In 1963 several limonitic ironstone replacement deposits in brecciated zones along limbs and crestal parts of a large NE trending anticline were identified. Limited rock chip sampling gave results at 31% and 35% Fe. A theoretical model based on the Frances Creek iron ore deposits has been posited, indicating the possibility of massive super gene ore bodies with little surface expression. No iron ore exploration has been carried out since the 1960s, but the area has seen exploration in the 1980s and 1990s directed at gold, base metals and uranium. Independent Appraisal The Company commissioned Al Maynard Associates, consulting geologists, to prepare an independent geological report and valuation of these mineral exploration assets. The valuation has been provided by way of a study of technical information provided by TNG, the Company and other relevant sources and prepared in accordance with the requirements of the Valmin Code (1999) as adopted by the Australian Institute of Geologists (AIG') and the Australian Institute of Mining and Metallurgy ('AusIMM'). The report was prepared Allen J. Maynard who holds the appropriate qualifications, experience and independence to qualify as an independent 'Expert' under the definitions of the Valmin Code. Under the guidelines for assessment and valuation of mineral assets and mineral securities as adopted by the AusIMM Mineral Valuation Committee Al Maynard Associates estimates the current technical value of the mineral exploration assets to be between AUS$1.63 million and AUS$1.96 million. The directors believe that these properties are of value for two principal reasons: 1. Several of the properties have identified uranium mineralisation or uranium anomalies, or are in a mineral field chiefly known for its uranium occurrences. Others lie along the Pine Creek Geosyncline, which is associated with uranium mineralisation in many places, and contain iron ore mineralisation indicating that they lie near the redox boundary in areas where the basement rock is known to carry uranium. The uranium potential of these licenses justifies active exploration following the recent decision of the Federal Government to take control of uranium policy in the Territory from the Northern Territory government. 2. The properties lie on or nearby the Stuart Highway and railroad leading north to Darwin, and the Darwin port expansion enabling handling of bulk cargoes is anticipated to be completed within the next year. High grade deposits of iron ore near the Highway, even if of moderate size, will become economic for transport and shipping from Darwin at that point, and the acquired tenements include recognised deposits that may fall in this category and have capacity for resource expansion through exploration. These tenements will become more valuable upon completion of the port facilities. Additionally, some attractive gold targets lie within the tenements and merit exploration. The directors believe that the mineral potential of the Northern Territory is under explored, primarily because of lack of infrastructure, but that the infrastructure improvements, the simplicity of the Native Title system within the Territory, and the opening up of the uranium exploration market, offer significant opportunities both within the existing iron ore and manganese focus of the company, and for economic discoveries of gold and especially uranium. Enquiries: Andrew Bell 07766 474849 Red Rock Resources plc Chairman John Simpson 020 7512 0191 ARM Corporate Finance Ltd Nominated Adviser Ron Marshman / John 020 7628 5518 City of London PR Limited Public Relations Greenhalgh This information is provided by RNS The company news service from the London Stock Exchange
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