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Dec-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 3,736 4,047 4,358 4,670880,595to311 623 934 1,245 1,557 1,868 2,179 2,490 2,802 3,113 3,424 3,736 4,047 4,358 4,670 4,981<<< < < <--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 = 4,074Dec-235,596.0tons1,272 1,096 848 601 351 101 18 75 133 191 249 306 346 90 05,596To Date404,507tons54,222 49,695 42,071 34,520 26,808 19,178 18,673 24,581 30,495 35,844 39,077 16,153 12,849 3400 0404,507tons/foot 81.2 tons/foot174.2 159.6 135.1 110.9 86.1 61.6 60.0 79.0 98.0 115.1 125.5 51.9 41.3 1.10.0 0.0% of target45.9%% of Permit78.8% 72.2% 61.2% 50.2% 39.0% 27.9% 27.1% 35.7% 44.3% 52.1% 56.8% 23.5% 18.7% 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 3,577 3,875 4,173 4,471876,751to298 596 894 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 ↓↓↓↓RLR↑< << << <<< <<< <<16H-IR-E Liner End ≈ 3,586Dec-237,003.0tons1,431.1 1,247.7 975.3 702.9 430.5 154.3 25.5 136.0 254.7 373.3 491.9 608.9 171.10.0 0.0 0.07,003To Date336,538tons36,215 33,570 28,717 23,863 19,010 14,071 13,456 20,975 28,845 36,714 42,006 30,576 8,5190 0 0336,538tons/foot 67.9 tons/foot116.8 108.3 92.7 77.0 61.3 45.4 43.4 67.7 93.1 118.5 135.5 98.7 27.50.0 0.0 0.0% of target 38.4% % of Permit52.9% 49.0% 41.9% 34.8% 27.8% 20.5% 19.6% 30.6% 42.1% 53.6% 61.3% 44.6% 12.4%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 4,511850,801to301 602 902 1,203 1,504 1,805 2,105 2,406 2,707 3,008 3,308 3,609 3,910 4,211 4,511 4,812< <---17H-IR-E Well17H-1V Well = 1,877 < <17H-I Liner End ≈ 3,208↓RLR17H-R(I) Well >>>> >>> >>> >>> >> >>↑<< << << << <17H-IR-E Liner INJ Point ≈ 3,647Dec-235,031.0tons793.4 688.0 534.2 380.4 226.1 71.5 38.8 174.5 312.0 451.6 590.3 707.7 62.20.0 0.0 0.05,031To Date219,691tons16,244 16,492 15,873 15,254 14,629 13,989 15,622 20,275 24,962 29,677 23,584 12,053 1,0370 0 0219,691tons/foot 45.7 tons/foot54.0 54.8 52.8 50.7 48.6 46.5 51.9 67.4 83.0 98.7 78.4 40.1 3.40.0 0.0 0.0% of target 25.8% % of Permit24.4% 24.8% 23.9% 22.9% 22.0% 21.0% 23.5% 30.5% 37.6% 44.6% 35.5% 18.1% 1.6%0.0% 0.0% 0.0%Total Month Production 20,616.0 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 / 91.017H-R(I) to 17H-1V17H-IR-E to 17H-1V12/01--12/31 On17H-I Well P&A AUG 202398.0 / 96.0Flow Direction: 12/01 to 12/3112/19-12/31 on16H-I liner parted ~1,984' MD GL16H-R(I) Well P&A SEPT 2022Flow Direction: 12/01 to 12/31(16H-I & 16H-IR-E) to 1V12/01-12/03, 12/05-12/17, 96.0 / 96.0(15H-R(I) & 15H-IR-E) to 1V12/01--12/31 On15H-I Well P&A AUG 2023Flow Direction: 12/01 to 12/31CONFIDENTIAL
<br />Daub & Associates, Inc.
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<br />Page 52 of 125
<br />Natural Soda LLC
<br />2023 4th Quarter EPA Report
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