A very large area of the remote far north-east of the State was taken up early in 2008 by the unlisted Thorne-Clarke family company, to explore for sediment-hosted secondary uranium mineralisation of the type found in intracratonic sedimentary basins in Kazahkstan in central Asia. Having the large, 29 x licence holding of ~30,000 square km was regarded by the applicant as necessary in order to properly be able to test the exploration model in an Australian setting. During 2008, the first year of tenure, publically-available data including mapping, drill hole logging data and down hole geophysical data relevant to the tenements was reviewed in detail. Conceptual models were developed for exploring locally for possible large Kazakh style sandstone-hosted and other sedimentary roll- front type uranium mineralisation styles. An extensive shallow rotary mud drilling programme was designed to confirm the tenements' prospectivity for sedimentary uranium mineralisation, by testing previously recognised gamma ray log anomalies that had been recorded in a number of existing oil and gas exploration and production wells in the Big Lake, Moomba, Daralingie and Moorari prospect areas, and to test and confirm the hypothetical sedimentary uranium mineralisation models. In April 2008, prior to the execution of the rotary mud drilling, TC Development Corp. contracted Budd Drilling to drill some aircore holes on the Big Lake prospect on EL 4072, to test the effectiveness of this less expensive drilling method for testing the exploration targets. However, the test was abandoned early due to inability of the aircore method to reach the target depths, and because of poor sample returns. A total of 8 holes were drilled for 612 m. Subsequently, the rotary mud drilling programme of 146 vertical holes for 16,775 m total penetration was undertaken during the latter half of 2008 in Tertiary sediments within TC Development Corp.'s ELs 4069, 4071, 4072, 4076, and 4084. This first stage of exploration drilling gave much encouragement for the discovery of economic sedimentary uranium mineralisation. Historically reported logged radioactivity anomalies in petroleum wells were confirmed, and were characterised as sedimentary uranium occurrences, while target sand horizon environments potentially suitable for in situ leaching (ISL) extraction techniques were observed to be associated with the radioactivity anomalies. During 2009, the JV partners continued to review publically available data including geological maps, drill hole logging data and down-hole geophysical data. It was decided to drill the previously untested Eyre Formation to assess its regional and local sedimentary uranium prospectivity, besides following up on the sub-economic Namba Formation - hosted mineralisation discovered in 2008 at Big Lake prospect. 5 shallow rotary mud holes for 676 m were drilled on EL 4086 at the Bow prospect to establish if there is prospectivity for sedimentary uranium mineralisation within the previously untested Tertiary Eyre Formation. The holes were sited to verify relatively shallow Eyre Formation - hosted gamma ray radiometric anomalies previously recognised in petroleum well logs, and aimed to establish the nature and geological/geochemical framework of any uranium mineralisation observed. Another 2 exploratory holes for 290 m were drilled on the Big Lake and Moomba North prospects to help define the regional Eyre Formation stratigraphy and lithology, and to determine redox conditions within the formation. Encouraging results were obtained that highlighted the formation's uranium prospectivity. 17 additional shallow rotary mud holes for 2113 m were drilled at Big Lake to better define the nature and context of the Namba Formation uranium intercepts discovered in 2008. It appeared from the results that the mineralisation is associated with a broad palaeochannel sand horizon. This finding led to the drilling of 2 more rotary mud holes for 215.1 m with short HQ diamond cored tails, which twinned two earlier rotary mud holes that had exhibited strong downhole gamma ray log anomalies. Good core recovery was obtained of mineralised clay horizons in both of these holes. Core samples were submitted for assaying, and results confirmed the presence of narrow but high grade uranium mineralisation in both holes (e.g. 1625 ppm U over 7.5 cm below 87 m depth in hole BLD094, and 864 ppm U over 10 cm below 105.7 m depth in cored hole BLD085). During 2010, it was intended to continue drilling defined targets in the Eyre Formation confined aquifer, to help develop a regional mineralisation model. A further 6 orientation test holes were proposed to be drilled at each of the Tirrawarra and Merrimelia prospects, commencing in August. Once the refined regional model had been established, it was envisaged that a subsequent drilling stage would test the sedimentary uranium potential of all seven priority prospects via completing a total of 87 holes for ~27,000 m of penetration. However, the sudden onset during winter of unusually heavy rain in the Sturt Stony Desert area interfered with carrying out these plans, and it was decided to postpone all drilling until 2011. Because unseasonally wet conditions persisted in the project area during 2011 and 2012, restricting access to the proposed drilling sites, no field work was done then. No field was done during 2013 either because of the withdrawal in March of JV partner Focus Minerals, an act that led to difficulties being encountered with securing ongoing exploration funding due to weak financial market conditions.