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Natural Soda LLC 2023 Project Status Report& Annual Plan of Development 21 January 2024 4.3. 2023 Operation Results (Confidential) Mining and production activities were continuous in 2023. The following Table 4 provides a summary of mining and process results: Table 4: Mine and Process Data (Confidential) 2023 Recovery Recovery Assay Assay Tons Tons Tons Tons Tons Monthly Month Avg GPM Temp. Bicarb g/l NaCl g/l Mining Interval #12H Mining Interval #13H Mining Interval #15H Mining Interval #16H Mining Interval #17H Total Tons Jan-2023 1,908 185 202 15 3,462 1,321 5,229 6,001 5,794 21,808 Feb-2023 1,846 182 199 16 1,020 3,224 4,713 4,848 5,156 18,960 Mar-2023 1,933 181 196 17 4,308 2,451 4,680 4,306 5,503 21,248 Apr-2023 1,866 184 199 16 2,140 1,573 5,475 5,084 5,870 20,141 May-2023 1,912 184 200 16 2,269 1,537 5,690 6,101 6,124 21,720 Jun-2023 1,883 183 201 15 3,038 672 5,272 5,600 5,133 19,716 Jul-2023 2,045 161 198 16 2,184 1,863 5,968 6,817 6,240 23,072 Aug-2023 1,862 180 198 15 2,990 796 4,601 5,662 5,992 20,040 Sep-2023 2,019 181 198 15 3,356 365 5,743 5,934 5,477 20,875 Oct-2023 1,994 181 197 14 3,357 443 5,282 6,688 5,068 20,838 Nov-2023 2,048 185 200 15 3,495 0 5,779 7,057 4,932 21,263 Dec-2023 1,883 181 200 14 325 2,661 5,596 7,003 5,031 20,616 AVERAGE 1,933 181 199 15 2,662 1,409 5,336 5,925 5,527 20,858 TOTAL 31,945 16,906 64,027 71,102 66,318 250,297 Key to above headings: Recovery - Monthly average house flow rate and pregnant liquor temperature during process operations. Assay - g/L sodium bicarbonate (as total bicarbonate) and sodium chloride in the pregnant liquor. (Total bicarbonate = bicarbonate g/L + 1.58 x carbonate g/L) Tons - Total monthly bicarbonate production from each mining interval. Temp. - Temperature in degrees F recovered at the pregnant liquor tank. Avg GPM - Monthly average injection flow rate during process operations.
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