Certificate of Anatfrb. multi-element standard, Bakouma, Central African Republic. AMrS0054. Certifi ed Con ce ntrati o n s

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1 R E E R E N C E M A T E R A L A Alta g ftvur, Afri ca n Mi rl_e,ql_stu!0 rds O R A R C A N O R E S African Mineral Standards Certificate of Anatfrb Uraniferous phosphatic sandstone multi-element standard, Bakouma, Central African Republic AMrS0054 Recommended Concentration and two "Between Laboratory" Standard Deviations Certifi ed Con ce ntrati o n s Ba (M/ CP) 642 t 44 PPm Cu (M/ CP) 260! 28 PPm Ni(M/ CP) 602! 6z PPm P2O5 (XR) t 0.82 oa Specific Gravity 2.90! 0.24 g/cc Sr (M/CP) 900! 9Z PPm U (M/ CP) t 96 PPm U (XR). 1472! 112 PPm Zn (M/CP) t 0.76 o/o P rovi si o n al Co n centratio n As (M/CP) 2 g t Go (M/lCP) 31 t Cr (M/lCP) 645 t Mn (M/CP) Pb (M/rcP) 142 t s (LECO) 0.13 t v (M/rcP) ppm 4 ppm 114 ppm 124 ppm 24 ppm 0.02 Yo 8.3 ppm * Or, by applying a chemical conversion factor of U x = UgOt U3Os by multiacid digestion: 1663! tl3 ppm U3Os by XR: 1736 t 132 PPm Tel:+ 2/(0) OA ax:+2/ (0) E-mai[: info@amis co.za Web: co.za 30 Electron Avenue, lsando, 1600, PO Box 856, ]sando, 1600, South Africa 'il'r1?1 Directors: E G Gresor (cto) G r Horsrierd, D -.l#ff 3l 3jtfji."#J:l',i:i8ll:::fni'rslil );ri3';j,','.'r'.?lj%#,hiiltiillflil

2 ntended use: AMS0054 is suitable for monitoring the accuracy of a single analysis of uraniferous phosphatic sandstone. The material can be used for routine quality control by inserting within a batch of samples. Additional geochemical data is presented for this material that will enable its use for method development and for the calibration of equipment. The recommended mean and "Between Lab" standard deviations for this standard reflect the average results from the laboratories that participated in the round robin. Slight variations in analytical procedures between laboratories will reflect as slight biases to the recommended concentrations and this is acceptable. Good laboratories however will report results within the two standard deviation levels with a failure of <10 %. Origin of material: This material was supplied by Uramin nc. from their Patricia prospect located 4 km north of the town of Bakouma in the Mbomou district of the Central African Republic, 550 km east of the capital Bangui and 100 km north of the district administrative centre of Bangassou. Mineral and chemical composition: The mineralisation has been known since the early 1960s and was extensively explored throughout the 1960s and 1970s. t occurs in Late Cretaceous to Eocene Phosphatic kaarst sediments of the M Patou ormation. These comprise thick black shales with pyrite and abundant organic matter, overlain by a m thick succession with brown, reddish and yellow phosphatic lenses. Phosphates occur in the form of microcrystalline, carbonate-substituted fluorapatites that can make up as much as 50% of the rock. The phosphate lenses are highly weathered and contain secondary Alphosphates. The main uraniferous phosphate minerals appear to be autunite and torbernite. Autunite is bright yellow in colour and torbernite is bright green. These minerals have been observed as fracture coatings, and fine-grained disseminations. White indurated masses of crandallite (alumina phosphate), have also been documented. or more information refer: Sweeney, Mark and Chesher, Mark. (June 2007). Bakouma Resource Technical Report, Bakouma, Central African Republic, for URAMN NC by AMC Consultants Pty Ltd., Amc Project B. ( The uncertified major and trace element chemical composition data is presented in the appendix to this certificate. Appearance: The material is a very fine powder. t is coloured a Light Brown (Corstor 5YR 6/4). Radioactivity: Shipments of this material require special labeling and placarding. AMS0054 contains U (18.4 Bq/g) and Th (0.03 Bq/g) and is classified as EXCEPTED MATERAL in terms of Safety Standards Series No. TS-R-1: Regulations for the Safe Transport of Radioactive Material, nternational Atomic Energy Agency, 2005, para 403, Table 1. Method of preparation: The material was crushed, dry-milled and air-classified to 100% <54um. Wet sieve particle size analysis of random samples confirmed the material was 100% <54um. t was then blended in a bi-conical mixer, systematically divided and then sealed into 1kg Laboratory Packs. Samples were randomly selected for homogeneity testing and third party analysis. Statistical analysis for the consensus test results were carried out by an independent statistician. Explorer Packs are subdivided from the Laboratory packs as required. 2

3 Methods of analysis requested: 1. Multi-acid digest, including H, CP- OES or CP-MS. Multi element scan ( to include U ). 2. U, XR. 3. Majors ( Al 2 O 3, CaO, Cr 2 O 3, e 2 O 3, K 2 O, MgO, MnO, Na 2 O, SiO 2, TiO 2. LO. ) XR fusion. 4. SG ( gas pycnometer ) Method of certification: Twenty laboratories were each given eight randomly selected packages of sample. The results from the sixteen laboratories that issued results timeously were used for the certification. The mean and standard deviation for all data was calculated. Outliers were defined as samples beyond the mean ± 2 Standard Deviations from all data. These outliers were removed from the data and a new mean and standard deviation was determined. Standards with an RSD of near or less than 5 % are then certified, RSD s of between near 5 % and 15 % are given Provisional Concentrations and limits, those with RSD s over 15 % are given ndicated Concentrations. This method is different from that used to calculate the Confidence nterval shown on many Government-produced standards in that the actual between-laboratory standard deviation is used in the calculations. This produces upper and lower limits that reflect actual individual analyses rather than a grouped set of analyses. The limits can therefore be used to monitor accuracy from individual analyses, unlike the Certified Limits published on other standards which quote a Confidence nterval. Participating laboratories: (Not in same order as in the table of assays) 1. ACME Analytical Laboratories Ltd., (Canada). 2. Activation Laboratories Ltd., (ActLabs, Ancaster, ON, Canada). 3. ALS Chemex South Africa ( Pty ) Ltd. 4. ALS Chemex, (Perth, Australia). 5. ALS Chemex, (Vancouver, Canada). 6. Anglo Research (Crown Campus, South Africa). 7. Assayers Canada, (Vancouver). 8. Genalysis Laboratory Services ( Pty ) Ltd., (Australia). 9. Geoservice Centre, Geolaboratory, (GTK. inland). 10. Mintek (South Africa) 11. OMAC Laboratories (reland). 12. Pt ntertek Utama Services (ntertek, ndonesia) 13. Set Point Laboratories ( Pty ) Ltd (South Africa) 14. SGS Lakefield Research (Canada) 15. SGS Welshpool (Australia). 16. Ultra Trace ( Pty ) Ltd. (Australia) Assay Data: Data as received from the laboratories for the certified elements is set out below. A proficiency report has been sent to the managers of the participating laboratories. Lab As Ba Co Cr Cu Mn Ni Pb P2O5 S SG Sr U U V Zn Code ppm ppm ppm ppm ppm ppm ppm ppm % % g/cc ppm ppm ppm ppm ppm (M/CP) (M/CP) (M/CP) (M/CP) (M/CP) (M/CP) (M/CP) (M/CP) (XR) (LECO) (M/CP) (M/CP) (XR) (M/CP) (M/CP) A A A A A A A A B B B B B B B B

4 Assay Data (cont) Lab As Ba Co Cr Cu Mn Ni Pb P2O5 S SG Sr U U V Zn Code ppm ppm ppm ppm ppm ppm ppm ppm % % g/cc ppm ppm ppm ppm ppm (M/CP) (M/CP) (M/CP) (M/CP) (M/CP) (M/CP) (M/CP) (M/CP) (XR) (LECO) (M/CP) (M/CP) (XR) (M/CP) (M/CP) C C C C C C C C D D D D D D D D E E E E E E E E G G G G G G G G H H H H H H H H J J J J J J J J K K K K K K K K L L L L L L L L

5 Assay Data (cont) Lab As Ba Co Cr Cu Mn Ni Pb P2O5 S SG Sr U U V Zn Code ppm ppm ppm ppm ppm ppm ppm ppm % % g/cc ppm ppm ppm ppm ppm (M/CP) (M/CP) (M/CP) (M/CP) (M/CP) (M/CP) (M/CP) (M/CP) (XR) (LECO) (M/CP) (M/CP) (XR) (M/CP) (M/CP) M M M M M M M M N N N N N N N N O O O O O O O O P P P P P P P P Q Q Q Q Q Q Q Q R R R R R R R R S S S S S S S S T 1560 T 1550 T 1550 T 1530 T 1550 T 1560 T 1540 T 1560 Availability: This product is available in Laboratory Packs containing 1kg of material or in Explorer Packs containing client specified weights of material from 50g up to 250g. Laboratory Packs are sealed bottles delivered in sealed foil pouches. Explorer Packs contain material in standard geochem envelopes placed into foil pouches that are nitrogen flushed and vacuum sealed. 5

6 Legal notice: This certificate and the reference material described in it have been prepared with due care and attention. However AMS, Set Point Technology (Pty) Ltd, Mike McWha, Dr Barry Smee and Smee and Associates Ltd; accept no liability for any decisions or actions taken following the use of the reference material. 30 January 2008 Certifying officers: African Mineral Standards: Mike McWha BSc (Hons), GSSA, MSAMM, Pr.Sci.Nat Geochemist: Barry W. Smee BSc, PhD, P.Geo, (B.C.) 6

7 APPENDX Major and trace element results were provided by seventeen laboratories and summary statistics are provided below. This data has not been certified. Major element statistics MEAN 2SD UNT RSD% n Al2O % C % CaO % Cr2O % e2o % K2O % LO % MgO % MnO % Na2O % P2O5* % SiO % TiO % * Certified Trace element statistics MEAN 2SD UNT RSD% n Ag M/CP ppm Al M/CP % Be M/CP ppm Bi M/CP ppm Ca M/CP ppm Cd M/CP ppm Ce M/CP ppm Cs M/CP ppm Dy M/CP ppm Er M/CP ppm Eu M/CP ppm e M/CP % Ga M/CP ppm Gd M/CP ppm

8 Trace element statistics (cont) MEAN 2SD UNT RSD% n Ho M/CP ppm n M/CP ppm K M/CP % La M/CP ppm Li M/CP ppm Lu M/CP ppm Mg M/CP % Mo M/CP ppm Na M/CP % Nb M/CP ppm Nd M/CP ppm P M/CP % Pr M/CP ppm Rb M/CP ppm Re M/CP ppm Sb M/CP ppm Sc M/CP ppm Se M/CP ppm Sm M/CP ppm Sn M/CP ppm Tb M/CP ppm Te M/CP ppm Th M/CP ppm Tl M/CP ppm Tm M/CP ppm W M/CP ppm Y M/CP ppm Yb M/CP ppm

CERTIFICATE VO SAMPLE PREPARATION ANALYTICAL PROCEDURES. Signature: Colin Ramshaw, Vancouver Laboratory Manager

CERTIFICATE VO SAMPLE PREPARATION ANALYTICAL PROCEDURES. Signature: Colin Ramshaw, Vancouver Laboratory Manager Page: 1 CERTIFICATE VO14023942 P.O. No.: KL 000348 This report is for 2 Drill Core samples submitted to our lab in Val d'or, QC, Canada on 18-FEB-2014. The following have access to data associated with