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Feb-24Cavity Production EstimateCONFIDENTIALNatural Soda LLCProduction from Cavities 12H, 13H, 15H, 16H, and 17HCAVITY 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 = 4,074Feb-245,960.8tons1,414.5 1,218.8 942.9 668.8 390.4 112.9 16.4 68.7 121.5 174.9 227.2 279.9 316.1 7.80.0 0.05,961To Date416,381.1tons57,043 52,125 43,952 35,854 27,586 19,403 18,706 24,718 30,736 36,191 39,527 16,708 13,476 3560 0416,381tons/foot 83.6 tons/foot183.2 167.4 141.2 115.2 88.6 62.3 60.1 79.4 98.7 116.3 127.0 53.7 43.3 1.10.0 0.0% of target47.3%% of Permit82.9% 75.8% 63.9% 52.1% 40.1% 28.2% 27.2% 35.9% 44.7% 52.6% 57.5% 24.3% 19.6% 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 ≈ 3,586Feb-246,079.4tons1,284.9 1,120.3 875.7 631.1 386.6 138.7 20.5 108.4 202.9 297.3 391.8 484.9 136.30.0 0.0 0.06,079To Date350,406.5tons39,159 36,137 30,723 25,309 19,896 14,389 13,503 21,220 29,303 37,385 42,889 31,669 8,8260 0 0350,407tons/foot 70.7 tons/foot126.3 116.6 99.1 81.7 64.2 46.4 43.6 68.5 94.5 120.6 138.4 102.2 28.50.0 0.0 0.0% of target 40.0% % of Permit59.4% 54.9% 46.6% 38.4% 30.2% 21.8% 20.5% 32.2% 44.5% 56.8% 65.1% 48.1% 13.4%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 3,609 3,910 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 ≈ 3,647Feb-244,207.9tons559.3 485.0 376.6 268.2 159.5 50.5 38.2 172.3 308.2 446.1 583.3 699.3 61.40.0 0.0 0.04,208To Date228,742.1tons17,481 17,565 16,706 15,847 14,982 14,100 15,703 20,637 25,609 30,614 24,809 13,522 1,1660 0 0228,742tons/foot 47.5 tons/foot58.1 58.4 55.5 52.7 49.8 46.9 52.2 68.6 85.1 101.8 82.5 45.0 3.90.0 0.0 0.0% of target 26.9% % of Permit26.3% 26.4% 25.1% 23.8% 22.5% 21.2% 23.6% 31.0% 38.5% 46.1% 37.3% 20.3% 1.8%0.0% 0.0% 0.0%19,265.1 TonsOrange cells denote subseuqent extensions to original mining intervalTotal Month Production (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 Mining98.0 / 93.017H-R(I) to 17H-1V17H-IR-E to 17H-1V02/01--02/29 On17H-I Well P&A AUG 2023Flow Direction: 02/01 to 02/2902/20--02/29 On16H-I liner parted ~1,984' MD GL16H-R(I) Well P&A SEPT 202297.0 / 94.002/01--02/04, 02/06--02/1894.0 / 94.0Flow Direction: 02/01 to 02/29(16H-I & 16H-IR-E) to 1V(15H-R(I) & 15H-IR-E) to 1V02/01--02/29 On15H-I Well P&A AUG 2023Flow Direction: 02/01 to 02/29
<br />Daub & Associates, Inc.
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<br />Natural Soda LLC
<br />2024 1st Quarter EPA ReportCONFIDENTIAL
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