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Aug-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 = 4,074Aug-234,601.0tons821 708 548 388 227 65 25 104 185 266 346 426 481 120 04,601To Date382,108tons49,122 45,300 38,671 32,109 25,400 18,772 18,602 24,282 29,966 35,083 38,088 14,934 11,472 3060 0382,108tons/foot 76.7 tons/foot157.8 145.5 124.2 103.1 81.6 60.3 59.8 78.0 96.3 112.7 122.4 48.0 36.9 1.00.0 0.0% of target43.4%% of Permit71.4% 65.9% 56.2% 46.7% 36.9% 27.3% 27.0% 35.3% 43.6% 51.0% 55.4%21.7% 16.7% 0.4% 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 ≈ 3,586Aug-235,662.0tons594.0 517.9 404.8 291.7 178.7 64.0 41.9 238.2 446.3 654.3 862.4 1,067.5 300.00.0 0.0 0.05,662To Date309,855tons31,209 29,205 25,304 21,403 17,504 13,531 13,342 20,355 27,685 35,013 39,763 27,801 7,7400 0 0309,855tons/foot 62.5 tons/foot100.7 94.2 81.6 69.1 56.5 43.7 43.0 65.7 89.3 113.0 128.3 89.7 25.00.0 0.0 0.0% of target 35.3% % of Permit45.6% 42.6% 36.9% 31.2% 25.6% 19.8% 19.5% 29.7% 40.4% 51.1% 58.1%40.6% 11.3%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 ≈ 3,647Aug-235,992.0tons875.5 759.2 589.5 419.9 249.7 79.3 49.7 225.1 402.9 583.3 762.7 914.5 80.30.0 0.0 0.05,992To Date193,193tons11,318 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 40.1 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 22.7% % 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 20,041 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 interval96 / 96.017H-R(I) to 17H-1V17H-IR-E to 17H-1V08/01--08/31 On98.0 / 100.0Flow Direction: 08/01 to 08/3108/30--08/31 On16H-I liner parted ~1,984' MD GLFlow Direction: 08/01 to 08/31(16H-I & 16H-IR-E) to 1V08/01--08/13, 08/16--08/27, 96.0 / 100.0(15H-R(I) & 15H-IR-E) to 1V08/03--08/13, 08/16--08/31 OnFlow Direction: 08/01 to 08/31CONFIEDNTIAL
<br />Daub & Associates, Inc.
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<br />Page 50 of 87
<br />Natural Soda LLC
<br />2023 3rd Quarter EPA Report
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