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MCARTHUR RIVER MINE | September 2020

Testing of samples using AEISG code testing for reactivity over a period of  28 days for inhibited product testing.

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Table 1

Sample Locations – sample collected 25/07/2020.

Sample IDXYZGPS Locations
RG_20200725_001617929.94428182725.075-63.00632916.4340362 S,136.1045902 E
RG_20200725_002617926.43738182753.622-63.58159716.4337783 E, 136.1045559
RG_20200725_003617930.47788182772.039-62.9806416.4336117 S, 136.1045928 E
RG_20200725_004617929.44058182791.448-63.56955616.4334363 S, 136.1045821 E
RG_20200725_005617928.64898182813.04-63.44551816.4332416 S, 136.1045675 E
RG_20200725_006617927.39588182831.823-63.52921516.4330715 S, 136.1045609 E
RG_20200725_007617678.74648183224.771-111.4584616.4295321 S, 136.1022122 E
RG_20200725_008617585.00268182025.138-127.38219216.4403794 S, 136.1013954 E
RG_20200725_009617714.36428183211.211-110.60270216.4296529 S, 136.1025464 E
RG_20200725_010617612.1948182024.277-127.52571516.4403858 S, 136.1016501 E
RG_20200725_011617765.18718183185.269-110.58725816.4298849 S, 136.1030237 E
RG_20200725_012617642.57978182047.32-127.75167116.44017 S, 136.1030818 E

Table 2

Tested as per the AEISG code reactivity screening test using laboratory grade ammonium nitrate and testing samples at 55°C for 7 days

Sample NoVisible ReactionVisible NOx Temperature IsothermTime to IsothermReactiveTemperature of TestAN type
RG_20200725_001NoNoNANANo55°CLab grade
RG_20200725_002NoNoNANANo55°CLab grade
RG_20200725_003NoNoNANANo55°CLab grade
RG_20200725_004NoNoNANANo55°CLab grade
RG_20200725_005NoNoNANANo55°CLab grade
RG_20200725_006NoNoNANANo55°CLab grade
RG_20200725_007NoNoNANANo55°CLab grade
RG_20200725_008NoNoNANANo55°CLab grade
RG_20200725_009NoNoNANANo55°CLab grade
RG_20200725_010NoNoNANANo55°CLab grade
RG_20200725_011NoNoNANANo55°CLab grade
RG_20200725_012NoNoNANANo55°CLab grade

Table 3

Tested as per the AEISG Code of Practice at elevated Temperatures for 10 Days, 3 days at 70°C followed by 7 days at 90°C

Sample NoVisible ReactionVisible NOx Temperature IsothermTime to IsothermReactiveTemperature of TestAN type
RG_20200725_001YesNo490°C7 days*Yes70°C/90°CLab grade
RG_20200725_002YesNo380°C6dys 21hrs*Yes70°C/90°CLab grade
RG_20200725_003YesNo483°C5.9Hrs*Yes70°C/90°CLab grade
RG_20200725_004YesNo225°C4.0Hrs*Yes70°C/90°CLab grade
RG_20200725_005YesNo283°C2.3Hrs*Yes70°C/90°CLab grade
RG_20200725_006NoNoNANANo70°C/90°CLab grade
RG_20200725_007NoNoNANANo70°C/90°CLab grade
RG_20200725_008NoNoNANANo70°C/90°CLab grade
RG_20200725_009YesNo94.5°C4ds 10hrs*Yes70°C/90°CLab grade
RG_20200725_010NoNoNANANo70°C/90°CLab grade
RG_20200725_011NoNoNANANo70°C/90°CLab grade
RG_20200725_012NoNoNANANo70°C/90°CLab grade

Table 4

Testing as per the AEISG Code of Practice at elevated Temperatures for 7 Days at 70°C

Sample NoVisible ReactionVisible NOx Temperature IsothermTime to IsothermReactiveTemperature of TestAN type
RG_20200725_001NoNoNANANo70°CLab grade
RG_20200725_002NoNoNANANo70°CLab grade
RG_20200725_003NoNoNANANo70°CLab grade
RG_20200725_004MarginalNoNANANo70°CLab grade
RG_20200725_005NoNoNANANo70°CLab grade
RG_20200725_009NoNoNANANo70°CLab grade

Table 5

Testing of the  3 most reactive samples as per the AEISG Code of Practice for testing of inhibited products at elevated of  temperature of 90°C for 28 Days

Sample NoVisible ReactionVisible NOx Temperature IsothermTime to IsothermReactiveTemperature of TestAN type*
RG_20200725_003NoNoNANANo90°C50/50
RG_20200725_003NoNoNANANo90°C60/40
RG_20200725_003NoNoNANANo90°C70/30
RG_20200725_004NoNoNANANo90°C50/50
RG_20200725_004NoNoNANANo90°C60/40
RG_20200725_004NoNoNANANo90°C70/30
RG_20200725_005NoNoNANANo90°C50/50
RG_20200725_005NoNoNANANo90°C60/40
RG_20200725_005NoNoNANANo90°C70/30

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Above: 15 days RG20200725_003, 004 and 005 + 50% Rioflex MX/50% prilled Ammonium Nitrate

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