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  "documentTitle": "NioCorp | Investor Presentation Deck | 47 slides",
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  "presentationDate": "2023-11-01 00:00:00",
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      "text": "NioCorp\nCritical Mineral Security",
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      "text": "Notes:\na. Classification of Mineral Resources in the above tables is in accordance with the S-K 1300\nclassification system. Mineral Resources in this table are reported exclusive of Mineral\nReserves\nb. Mineral Resources that are not Mineral Reserves do not have demonstrated economic\nviability.\nc. The Mineral Resources are reported at a Diluted Net Smelter Return (NSR) Cut-off of US\n$180/tonne.\nd. The diluted NSR is defined as:\nDiluted NSR (U.S. $) =\nRevenue per block Nb205 (diluted) + Revenue per block Tio2 (diluted) + Revenue per block Sc (diluted)\nDiluted tonnes per block\nThe diluted revenue from Nb2O5, TiO2, and Sc per block used the following factors:\nNb2O5 Revenue: a 94% grade recovery, a 0.696 factor to convert Nb2O5 to Nb,\n82.36% assumption for plant recovery, and a US$ 39.60 selling price per kg of\nferroniobium as of June 30, 2022.\nTiO2 Revenue: a 94% grade recovery, a 40.31% assumption for plant recovery,\nand a US$ 0.88 selling price per kg of titanium oxide as of June 30, 2022.\nSc Revenue: a 94% grade recovery, a 1.534 factor to convert Sc to SC2O3,\n93.14% assumption for plant recovery, and a US$ 3,675 kg selling price per kg\nof scandium oxide as of June 30, 2022.\nThe diluted tonnes are a 6% increase in the total tonnes of the block.\ne. Price assumptions for FeNb, SC2O3, and TiO2 are based upon independent market\nanalyses for each product.\nf. Numbers may not sum due to rounding. The rounding is not considered to be material.\ng. Rare Earth Oxides (REO) were evaluated as a potential by-product to the mining of\nniobium, titanium, and scandium; thus the estimated values of the REOs are reported using\nthe previously determined diluted NSR as derived from the Nb2O5, TiO2, and Sc Mineral\nResources and are assigned a price of $0.\nh. The stated Light Rare Earth Oxides (LREO) grade (%) is the summation of La2O3 (%), Ce2O3\n(%), Pr2O3 (%), and Nd2O3 (%) estimates.\ni. The stated Heavy Rare Earth Oxides (HREO) grade (%) is the summation of Sm203 (%),\nEu2O3 (%), Gd2O3 (%), Tb2O3 (%), Dy2O3 (%), H0203 (%), Er2O3 (%), Tm2O3 (%), Yb2O3 (%),\nLu2O3 (%), and Y2O3 (%) estimates.\nj. The stated Total Rare Earth Oxide (TREO) grade (%) is the summation of LREO (%) and\nHREO (%).",
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      "text": "(MINERAL RESOURCE AS OF June 30, 2022)",
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      "text": "NOTE: The Qualified Person for the Mineral Resource estimate is Understood Mineral Resources Ltd. The estimate has\nan effective date of June 30, 2022.",
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      "text": "1 Based on the S-K 1300 Elk Creek Technical Report Summary. See \"Mineral Reserves and\nResources\" in the Disclaimers & Technical Disclosures at the beginning of this presentation.",
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      "text": "Elk Creek 2022 In Situ Mineral Resource Estimate (niobium, titanium, and scandium) excluding reserves\nClassification\nNSR Cutoff\n(US$/tonne)\nTonnage\n(Mt)\nGrades\nTonnages\nNb2O5 (%)\nNb2O5 (kt)\n0.43\n649.8\nIndicated\n180\n151.7\nTiO2 (%)\nTiO2 (kt)\n2.02\n3,067\nSc (ppm)\nSc (t)\n56.42\n8,558\nNb205 (%)\nNb205 (kt)\n0.39\n426.6\nInferred\n180\n108.3\nTiO2 (%)\nTiO2 (kt)\n1.92\n2,082\nSc (ppm)\nSc (t)\n52.28\n5,660",
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      "text": "Elk Creek S-K 1300 Mineral Resource¹",
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