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Sep-23Cavity Production EstimateNatural SodaProduction from Cavities 12H, 13H, 15H, 16H, and 17HCONFIDENTIALCAVITY 15Hinterval1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16target tonsfrom0 311 623 934 1,245 1,557 1,868 2,179 2,490 2,802 3,113 3,424 3,7364,047 4,358 4,670880,595to311623 934 1,245 1,557 1,868 2,179 2,490 2,802 3,113 3,424 3,736 4,047 4,358 4,670 4,98115H-I Well----------<<< < < <--15H-IR-E Well15H-1V Well = 1,881< <15H-I Well Liner End ≈ 3,169 ↓↓ 15H-IR-E Well Liner End ≈ 3,514RLR15H-R(I) Well >>>> >>> >>> >>> >> >> ↑ << << <<< <<<15H-IR-E Pull Back 2021 = 4,074Sep-235,743.0tons1,324 1,141 883 626 365 105 17 73 130 187 243 300 339 80 05,743To Date387,850tons50,446 46,441 39,554 32,735 25,765 18,877 18,620 24,356 30,096 35,270 38,331 15,234 11,811 3140 0387,850tons/foot 77.9 tons/foot162.1 149.2 127.1 105.2 82.8 60.6 59.8 78.2 96.7 113.3 123.1 48.9 37.9 1.00.0 0.0% of target44.0%% of Permit73.3% 67.5% 57.5% 47.6% 37.5% 27.4% 27.1% 35.4% 43.8% 51.3% 55.7%22.1% 17.2% 0.5% 0.0% 0.0%CAVITY 16Hinterval1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16target tonsfrom0 298 596 894 1,192 1,490 1,788 2,086 2,385 2,683 2,981 3,279 3,5773,875 4,173 4,471876,751to298596 894 1,192 1,490 1,788 2,086 2,385 2,683 2,981 3,279 3,577 3,875 4,173 4,471 4,76916H-I Well >> >> >> >> >> > > >> >> >>> >>> >> << <---16H-IR-E Well16H-1V Well = 1,734 < 16H-I Liner End ≈ 3,242 ↓↓↓↓RLR16H-R(I) Well-----↑< << << <<< <<< <<16H-IR-E Liner End ≈ 3,586Sep-235,934.0tons955.0 832.6 650.9 469.1 287.3 103.0 31.3 174.0 325.8 477.7 629.5 779.2 219.00.0 0.0 0.05,934To Date315,789tons32,164 30,038 25,955 21,872 17,791 13,634 13,373 20,529 28,011 35,491 40,393 28,580 7,9580 0 0315,789tons/foot 63.7 tons/foot103.8 96.9 83.7 70.6 57.4 44.0 43.1 66.2 90.4 114.5 130.3 92.2 25.70.0 0.0 0.0% of target 36.0% % of Permit47.0% 43.9% 37.9% 31.9% 26.0% 19.9% 19.5% 30.0% 40.9% 51.8% 59.0%41.7% 11.6%0.0% 0.0% 0.0%CAVITY 17Hinterval1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16target tonsfrom0 301 602 902 1,203 1,504 1,805 2,105 2,406 2,707 3,008 3,308 3,6093,910 4,211 4,511850,801to301602 902 1,203 1,504 1,805 2,105 2,406 2,707 3,008 3,308 3,609 3,910 4,211 4,511 4,81217H-I Well-----------< <---17H-IR-E Well17H-1V Well = 1,877 < <17H-I Liner End ≈ 3,208↓RLR17H-R(I) Well > > > > > >↑<< << << << <17H-IR-E Liner INJ Point ≈ 3,647Sep-235,477.0tons807.4 700.1 543.6 387.1 230.1 72.8 45.2 204.1 365.1 528.6 691.1 828.6 72.80.0 0.0 0.05,477To Date204,661tons11,318 12,220 12,556 12,892 13,225 13,544 15,357 19,080 22,825 26,583 19,539 7,203 6110 0 0186,952tons/foot 42.5 tons/foot37.6 40.6 41.7 42.9 44.0 45.0 51.1 63.4 75.9 88.4 65.0 23.9 2.00.0 0.0 0.0% of target 24.1% % of Permit17.0% 18.4% 18.9% 19.4% 19.9% 20.4% 23.1% 28.7% 34.3% 40.0% 29.4%10.8% 0.9%0.0% 0.0% 0.0%Total Month Production 20,875 Tons(Allocated tons are calculated from the assayed tons on the Efficiency Report) Mining Fluid Flow Direction Key: ( - ) = No Flow/No Mining ( >>>>> ) = INJ to REC Flow & Mining ( > ) = INJ to REC Flow & No to Minimal MiningOrange cells denote subseuqent extensions to original mining interval100.0 / 94.017H-R(I) to 17H-1V17H-IR-E to 17H-1V09/01--09/30 On98.0 / 98.0Flow Direction: 09/01 to 09/3016H-I liner parted ~1,984' MD GLFlow Direction: 09/01 to 09/30(16H-I & 16H-IR-E) to 1V09/01-09/28, 09/30 On 96.0 / 102.0(15H-R(I) & 15H-IR-E) to 1V09/01--09/30 OnFlow Direction: 09/01 to 09/30CONFIEDNTIAL
<br />Daub & Associates, Inc.
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<br />Page 52 of 87
<br />Natural Soda LLC
<br />2023 3rd Quarter EPA Report
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