An extensive area of Tertiary Lake Eyre Basin and Mesozoic Eromanga Basin sediments lying immediately to the north of the uranium-rich Mount Babbage and Mount Painter inliers is being explored for possible economic roll-front style palaeochannel hosted uranium mineralisation. Present-day drainage patterns and airborne radiometric survey imagery show that uranium is presently being shed into the Marree Project area from the adjacent outcropping uranium-rich Proterozoic and Palaeozoic basement, a process which has probably been steadily continuing by erosion of this exposed basement since the uplift of the Flinders Ranges during the Oligocene- Miocene, and in consequence the area is believed to be prospective for discovering large sedimentary uranium deposits of the Beverley and Honeymoon type. The northern margin of the Mount Babbage Inlier within EL 3390 was also thought to be prospective for finding Beverley - Four Mile type uranium deposits that may have formed adjacent to the basin margin faults. During license Year 1, prior to obtaining landowner permissions for ground-based exploration activities, the licensee conducted a desktop review of historic exploration records, and prepared a GIS-based stratigraphic and structural basin model derived from previous exploration drillhole data. Although these data are very sparse and localised, they indicated the presence of significant thicknesses of prospective Tertiary Eyre Formation sands, but did not constrain the geometry or redox conditions of these target sands. Therefore Scimitar Resources decided to conduct a trial HoistEM survey over the eastern part of the project area to try to better define the broad palaeochannel geometry. During December 2005, contractor GPX Airborne flew ~162 line km of helicoper-borne AEM acquisition along 8 east-west lines spaced 2-4 km apart. Inversion modelling of the resultant processed AEM data indicated the presence of modestly conductive north-northeast trending features at approximately 80-120 m depth, which it was hoped might be sandy palaeochannels with the Eyre Formation. Information gained from past drilling records had indicated that depths to the base of the Eyre Formation could be as much as 190 m. Regional mapping interpretation inferred that potentially prospective sand or conglomerate layers might occur within the underlying Cretaceous Eromanga Basin sediments in the Marree Project area, but as yet no drillhole evidence for this was available. During licence Year 2, during the 2006-2007 tenement year, Scimitar Resources proceeded to acquire a regional scale helicopter-borne aerial EM (RepTEM) survey across the four project licences during June 2007, flying a total of 1507 line km along 39 east-west lines spaced 1 km apart. The company then set about planning a geological mapping/rock chip sampling field trip and a rotary drilling programme to test the palaeochannel systems outlined by the new AEM data. Preliminary interpretation of the RepTEM survey results showed the presence of an extensive palaeodrainage system developed down to a depth of approximately 75 m. The interpreted main palaeochannel is up to 2.5 km wide and trends to the north-west for over 20 km. It is joined by second, also broad north-west trending palaeochannel near the centre of the project area. Discussions with the Adnyamathanha People (Native Title claimants to land covering the West Lake Frome tenure) were concluded during the period, with a Work Clearance Agreement being signed in July 2007, thus allowing the commencement of ground-disturbing exploration activities. During license Year 3, during the 2007 - 2008 tenement year, following the completion of a 5-day field trip to examine exposures of Tertiary sediments within the project area and to select suitable drilling locations, Scimitar Resources undertook an initial rotary mud drilling campaign of 19 vertical holes for a total penetration of 2486 m during August 2008, to test the uranium potential of Eyre Formation sands that are adjacent to a basement-intersecting fault system. The holes were drilled on a general 800 m spacing along traverses 1200 m apart. All were geophysically logged with a gross gamma ray wireline tool in uncased open hole, and drill cuttings samples were collected for geological logging. The drillhole-derived stratigraphic succession commences at surface in thin Quaternary alluvial-colluvial sediments, which overlie 30-50 m thickness of oxidised and reduced clays and sandy clays of the interpreted Neogene-aged Namba Formation. Underlying this unit is a 30-60 m thick interval consisting of both oxidised and reduced lignitic quarts sands and gravels, mudstones and lignitic muds, all interpreted to be part of the Paleogene-aged Eyre Formation. Cretaceous Marree Subgroup sediments consisting of marine shales and mudstones were encountered at the bottom of all the holes. Anomalous contents of uranium were encountered in holes MAMR001, MAMR002 and MAMR006 within interpreted Eyre Formation sediments, where the uranium occurs in the following three lithologies: in a lignitic mudstone/clay at the base of a lignitic gravelly sand horizon; in a weakly oxidised mudstone with interbeds of coarse gravelly sands; and in reduced clays with interbeds of coarse gravelly sands. The background radiometric uranium level for the drillholes was logged as being in the order of 6-7 ppm (eU3O8), while the anomalism in mineralised horizons gave counts of up to 10x background levels. The depth to base of the Tertiary palaeochannel sands that were drilled ranges down to ~160 m. The licensee's initial review of the drilling data indicated that the sands in its northern traverse holes are chemically completely reduced, with little associated uranium anomalism, whereas the sands intersected by its southern traverse holes appear to be both reduced and partially oxidised, with coincident uranium anomalism occurring in this locality. The extent of anomalism remains open to the east and south-east, while potential also exists to the north of holes MAMR001-002. Consequently, the conduct of further drilling to the south and east, following the local drainage pattern, has been recommended, plus additional infill drilling to the north of MAMR001-002, because the company's aerial EM data indicate that these particular areas also contain buried conductive sedimentary packages now interpreted to belong to the Eyre and Namba Formations. As part of proposed ongoing exploration, the licensee during 2009 intends to acquire ~15,000 line km of airborne radiometric/magnetic survey data at 200 m flight line spacing, giving it 100% coverage of the project area, which then may disclose discrete targets for near surface uranium mineralisation. As well, the company intends to obtain existing seismic survey data from PIRSA for this area, which should assist interpretation of potential sand units within the Eyre and Namba Formations, and identify the positions of major faults transecting the ground which could have provided fluid flow pathways for uranium migrating from basement sources to have entered the basin fill. Finally, it is planned to soon conduct a second campaign of reconnaissance and infill rotary mud drilling along traverses of approx. 2500-3000 m length (involving an estimated 20-25 holes of 100-150 m depth) to both follow up and extend the previously encountered uranium anomalism and to investigate regional geometry and redox conditions of the Eyre Formation and Eromanga Basin sediments. During license Year 4, Cauldron Energy Ltd (Formerly Scimitar Resources as of 21/07/2009) entered into Farm-In and Joint Venture Agreement with a Korean Consortium comprising the Korean government and large multinational companies to jointly explore, drill and develop the Marree Uranium Project. The JV comprised 5 tenements EL’s 3389, 3390, 3510, 3557 and 4279. A Clearance Survey was conducted by Adnyamathanha and Dieri Specialists from August 3rd to 7th in relation to heritage sites. Forty-five drill hole sites and associated access tracks were cleared and permissions to drill granted. A magnetic/radiometric survey was flown over the project area, a total of 18,818 line-km was flown at various different line spacing’s (400 m, 100 m and 50 m). The work was conducted by UTS Geophysics between 22nd July and 18th August 2009. Interpretation of the airborne survey data will be undertaken to identify walk-up drill targets for near surface uranium mineralisation and to identify buried faults and structural features within the Proterozoic basement rocks of the Mt Babbage Inlier, that will aid follow-up drilling programs targeting 4 Mile-style mineralisation. Cauldron’s review of historic data, airborne EM survey and results from drilling conducted have highlighted the project’s prospectivity for Beverley and Beverley 4 Mile type uranium deposits. During license Year 5, between October and November 2009 Cauldron Energy conducted a mud rotary drilling program within EL3389 and EL 3390 targeting economic uranium mineralisation within Eyre Formation sands adjacent to a basement intersecting fault system. Forty-two vertical mud rotary holes were drilled (for a total of 3121 m) with an average depth of 80 m, 36 of the holes were drilled on a broadly spaced 2000 m x 1,000 m pattern over six east-west orientated lines. A further six holes were drilled on two east- west lines on 800 m x 800 m spacings. All holes were drilled vertically and logged with a gross gamma downhole tool, in uncased open holes, 2 m composite samples for geological logging were collected from the open-hole drill collar. The drilling identified anomalous uranium mineralisation over 12 km across widths up to 4 km, and returned a number of significant results, including 0.60 m at 180 ppm eU3O8, up to a peak of 245 ppm in hole MAMR052, along with significant widths (up to 20 m) of anomalous uranium in variably reduced and oxidised lignitic sandstones and clays. From April to June 2010 Cauldron Energy conducted a mud rotary drilling program within EL 3389 and EL 3390 targeting economic uranium mineralisation within Eyre Formation sands adjacent to a basement intersecting fault system. Infill drilling of nineteen vertical mud rotary holes were drilled (for a total of 2394 m) with an average depth of 130 m. The drilling targeted a zone of anomalous uranium mineralisation in the MacDonnell Creek area in the vicinity of MAMR052. A Field mapping program was completed between July and September with a total of 3 weeks field time. The purpose of the program was to validate the hard rock geological and geophysical interpretation prepared for the project area. The drilling program conducted in October/November identified two main areas of uranium anomalism associated with variably oxidised and reduced Tertiary sediments within the Blanchewater Prospect. These sediments and their associated reduction boundaries indicate potential in the George Creek and MacDonnell Creek areas for the deposition of economic uranium mineralisation. Downhole gamma probing has confirmed the presence of highly anomalous uranium within these areas, including 0.6 m @ 180 ppm eU3O8 peaking at 245 ppm. The successful infill drilling program conducted in May/June 2010 has extended the area of identified uranium anomalism, associated with variably oxidised and reduced Tertiary Eyre Formation sediments, within the MacDonnell Creek area of the Blanchewater Prospect. During licence Year 6, Cauldron has completed drilling at three prospects within the Marree JV tenement package. Drilling has been completed at the Red Banks Well prospect, the George Creek Prospect and the MacDonnell Creek prospect. Interpretation and analysis of the Joint Venture tenements has been completed which has included reviewing project geology, field mapping and reviewing geophysical data including radiometric, magnetic and EM data. During September to October 2010 Cauldron Energy undertook a mud rotary drilling program at the Red Banks Well Prospect with 30 vertical drillholes (MAMR090-119) drilled for 2266 m, on a 3.2 km x 1.6 km pattern within exploration licence EL 3510, targeting uranium mineralisation within Tertiary-aged Namba and Eyre Formation sediments. Downhole geological and geophysical logging showed the three most southern drill lines contained wholly oxidised sand horizons, with no evidence of reduced materials, indicating poor potential for the deposition of uranium. However, the two most northern drill lines indicated much more prospective geological/redox conditions, with a potential redox front identified towards the eastern end of the drill lines. Within the two northern lines the presence of both oxidised and reduced sands of interpreted Eyre and Namba Formation was noted with anomalous uranium mineralisation up to 153 ppm and identified a redox front within variably oxidised and reduced sediments. Thirty-three (MAMR120-152) vertical drillholes (3576 m) were drilled on a 200 m x 100 m pattern at MacDonnell Creek and 1000 m x 500 m pattern at George Creek, within exploration licences EL 4609 and EL 4610, targeting uranium mineralisation within Tertiary-aged Eyre Formation sediments. The drilling at MacDonnell Creek has identified a major new uranium-bearing, Tertiary-aged palaeochannel which is located within an extensive sedimentary package high in anomalous uranium. The channel, which is trending to the east, is up to 300 m wide and 12 m deep and has been generated as a result of regional faulting to the west of the drilling area The recent program of drilling has returned the Projects best uranium intercepts to date, with downhole gamma probing returned a maximum intersection of 1.0 m at 263 ppm eU3O8 (MAMR 132) and 0.65 m at 235 ppm eU3O8 in reduced sediments directly below the channel itself. Seven of the recent drillholes intercepted the new palaeochannel, with four of these (MAMR 132-135) containing significant uranium intercepts. The results of the successful follow up drilling program at MacDonnell Creek/George Creek has indicated that Low-grade uranium has been identified within Eyre Formation sediments, that a significant new mineralised channel sequence has been intercepted, that higher grade intercepts continue to be intercepted by follow-up drilling programs and that the potential exist within the prospect for an economic uranium deposit downstream. The successful first pass drilling at Red Banks Well identified a new regional target for uranium anomalism, associated with variably oxidised and reduced Tertiary Eyre Formation sediments. During licence Year 7, a mud rotary drilling program, 39 vertical drillholes (4982 m MAMR153 – MAMR191) were drilled which included 24 holes at MacDonnell Creek Northeast and 15 holes at Red Banks Well, within exploration licences EL 4609 and EL 4746. The target of the drilling was to identify uranium mineralisation within Tertiary-aged Namba Formation and Eyre Formation sediments. The drilling at the Red Banks Well Prospect (15 holes for 1502 m, MAMR177-MAMR191) targeted infill drilling of the previously completed drillholes in the region. The initial aim of drilling at Red Banks Well was to target exploration holes to the north and east of the previously drilled area. The revised drilling proposal was aimed at identifying elevated zones of uranium within the Eyre Formation close to identified faults observed in the geological interpretation of the previous drilling program completed in 2011. The recently completed drilling program returned elevated occurrences of uranium mineralisation, with downhole gamma probing returned a maximum intersection of 1.34 m at 75 ppm eU3O8 and a broad zone of 3.37 m at 67 ppm eU3O8 within Eyre Formation sediments. Drilling failed to show any evidence of potentially economic grades of uranium within this section of the Red Banks Well Prospect. It did however prove that significant uranium occurred to the east of the previously drilled area as well as confirming a relatively widespread low grade uranium zone occurred on the most northern drill line. The drilling at MacDonnell Creek Northeast (24 holes for 3480m, MAMR153-MAMR177) targeted the downhole continuation of the recently identified mineralised channel at MacDonnell Creek. The drilling program showed that it was unlikely that the target channel trended back into EL 4609 but rather continued to trend eastwards away from the Marree JV tenements. No significant uranium was identified within the MacDonnell Creek Northeast region with the maximum gamma grade being 41 ppm eU3O8. At MacDonnell Creek Northeast a total of 25 palynological samples were collected from drilling in this region and processed by PIRSA. During licence Year 8, Cauldron completed extensive exploration primarily on EL 4279 looking for base metal deposits. Results from areas of this tenement over which abundant data is available, will then be used to assess tenements further north where limited outcrop exists. Over the past few years, the focus of the project has been exploring for sedimentary uranium deposits within palaeochannel-type environments. Field sampling and mapping in September 2012 identified elevated base metal signatures in soil samples that has shifted the focus of the company from uranium exploration to base metal exploration in the project area. In early September 2012 Cauldron commenced a three-week pXRF and soil sampling program targeting uranium mineralisation at surface based on radiometric and geological target areas. Fourteen sampling grids were generated with sample spacing ranging from 400 m to 1000 m. A total of 534 soil samples and 118 rock chip samples were collected with a combination of pXRF and laboratory analysis performed. Between November and December 2012 Cauldron conducted a follow up soil sampling and XRF program, with 1437 XRF analyses performed, and 1415 soil samples collected for geochemical analysis. The XRF data and geochemical soil assay results was sent to Nigel Brand at Geochemical Services Pty Ltd for a full geochemical assessment to see if drill targets can be selected using the soil data collected. Geophysical work completed in this period consists of a ground-based gravity survey completed (1390 stations along 38 lines, with line spacing 400, 800 and 1600 m and station intervals along lines were 100, 200 and 1600 m) by Haines Surveys in December 2012 as well as the re-inversion of historical IP data from the Ooloo Prospect area. The gravity data has been re-processed and reviewed by three independent geophysicists during the year to determine whether there are any exploration targets in the region. Two of the reviews did not identify any possible targets but one review has identified a deep gravity anomaly below the historical Ooloo workings that requires further analysis. The IP work has shown a large resistive body below the historical Ooloo workings, but no conductive targets were identified. In January 2013 an eight-hole, reverse circulation drilling program was completed for a total length of 898 m. Drilling did not intersect any significant base metal mineralisation but there were difficulties in reaching target depth due to excessive amounts of ground water which was not expected. Since the completion of the drilling program, further mapping and field reconnaissance have been completed that have identified two main base metal prospects where extensive historical mining has taken place. These two prospects have been named Ooloo Prospect and Mt Freeling Prospect. Field reconnaissance has identified an extensive region of historical shafts and workings over 1.6 km long at the Mt Freeling Prospect with rock samples (90) from mullock heaps containing very high levels of primarily lead and silver. Rock samples (5) were collected for isotope work to be completed. The isotope work has shown that the lead appears to have been derived from radiogenic source rocks and sulphur data suggests that the mineralisation is associated with a possible hydrothermal source. Further field reconnaissance and geophysical work needs to be completed to properly assess the full potential of base metal mineralisation in the Marree JV Project area and on EL 4279. During licence Year 9, Cauldron undertook a reconnaissance visit to the two southern tenements of the Marree JV; EL 5442 (previously EL 4279) and EL 4610, with the objective of providing feed back on the work already completed and to review the base metal potential of the project area. During the reconnaissance trip, rock chip sampling was undertaken with 30 samples collected for geochemical analysis. The main findings of the site visit were that the Marree project area has not yet been adequately explored. The existing rock chip sampling data cannot provide enough evidence to warrant drilling; therefore, further definition of the geological setting is required. During licence Year 10 through to the beginning of Year 12, no exploration work was carried out on the tenement group and therefore no technical report was submitted. Subsequent licence application and renewals were withdrawn, and surrender application submitted on the 18th November 2016, effectively concluding the operation of the Marree Project.