Biggest changeA copy of the QP’s amended TRS with respect to the potassium and SOP, magnesium and magnesium chloride and sodium and sodium chloride mineral resource and reserve estimates at the Ogden facility, dated November 29, 2021 and amended December 14, 2022, with an effective date of September 30, 2021 (the “Ogden Potassium/Magnesium/Sodium TRS”), is filed as Exhibit 96. 2 hereto. 40 2022 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC.
Biggest changeThe material assumptions and information pertaining to the Company’s disclosure of mineral resources and mineral reserves at the Ogden facility are based on the Technical Report Summary with respect to Potassium and SOP, Magnesium and Magnesium Chloride and Salt for the Ogden facility, dated November 29, 2021, as amended on December 14, 2022, with an effective date of September 30, 2021 (the “Ogden Potassium/Magnesium/Sodium TRS”).
(3) There are multiple saleable products based on salt quality from the underground mining operations (rock salt for road deicing and chemical grade salt).
(3) There are multiple saleable products based on salt quality from the underground mining operations (rock salt for road deicing and chemical grade salt).
Sales prices are projected to increase to approximately $295.60 per ton to $706.49 per ton for rock salt for road deicing through the current expected end of mine life.
Sales prices are projected to increase to approximately $295.60 per ton to $706.49 per ton for rock salt for road deicing through the current expected end of mine life.
The QP assumes that when the north arm of the Great Salt Lake (where the Ogden facility sources its brine) reaches this concentration level, the Ogden facility will halt production of potassium and SOP.
The QP assumes that when the north arm of the Great Salt Lake (where the Ogden facility sources its brine) reaches this concentration level, the Ogden facility will halt production of potassium and SOP.
The QP assumes that when the north arm of the Great Salt Lake (where the Ogden facility sources its brine) reaches this concentration level, the Ogden facility will halt production of magnesium and magnesium chloride.
The QP assumes that when the north arm of the Great Salt Lake (where the Ogden facility sources its brine) reaches this concentration level, the Ogden facility will halt production of magnesium and magnesium chloride.
The QP assumes that when the north arm of the Great Salt Lake (where the Ogden facility sources its brine) reaches this concentration level, the Ogden facility will halt production of sodium and sodium chloride.
The QP assumes that when the north arm of the Great Salt Lake (where the Ogden facility sources its brine) reaches this concentration level, the Ogden facility will halt production of sodium and sodium chloride.
However, the QPs believe it is likely that the SOP operation will continue depleting lithium from the ambient waters of the Great Salt Lake after concentrations of lithium are below an estimated cut-off grade and that the Company will continue concentrating lithium in its evaporation pond process until lithium concentrations in the Great Salt Lake reach null.
However, the QPs believe it is likely that the SOP operation will continue depleting lithium from the ambient waters of the Great Salt Lake after concentrations of lithium are below an estimated cut-off grade and that the Company will continue concentrating lithium in its evaporation pond process until lithium concentrations in the Great Salt Lake reach null.
(6) A cut-off grade was not utilized for the calculation as the in situ product quality is relatively constant and saleable after processing. (7) There are multiple saleable products based on salt quality from the operation (rock salt for road deicing and chemical grade salt).
(6) A cut-off grade was not utilized for the calculation as the in situ product quality is relatively constant and saleable after processing. (7) There are multiple saleable products based on salt quality from the operation (rock salt for road deicing and chemical grade salt).
Sales prices are projected to increase to approximately $706.49 per ton for rock salt for road deicing through year 2138 (the current expected end of mine life).
Sales prices are projected to increase to approximately $706.49 per ton for rock salt for road deicing through year 2138 (the current expected end of mine life).
(7) A cut-off grade was not utilized for the calculation as the in situ product quality is relatively constant and saleable after processing. (8) There are multiple saleable products based on salt quality from the operation (rock salt for road deicing and chemical grade salt).
(7) A cut-off grade was not utilized for the calculation as the in situ product quality is relatively constant and saleable after processing. (8) There are multiple saleable products based on salt quality from the operation (rock salt for road deicing and chemical grade salt).
Ogden Facility – Summary of Lithium and LCE Mineral Resources at September 30, 2022 and 2021 September 30, 2022 September 30, 2021 Resource Area Average Grade (mg/L) (4) Lithium Resources (tonnes) (1)(2)(3) LCE Resources (tonnes) (1)(2)(3)(6) Average Grade (mg/L) (4) Lithium Resources (tonnes) (1)(2)(3) LCE Resources (tonnes) (1)(2)(3)(6) Measured Resources Total Measured Resources — — — — — — Indicated Resources Great Salt Lake North Arm 51 226,860 1,207,577 51 226,860 1,207,577 Great Salt Lake South Arm (5) 25 208,711 1,110,970 25 208,711 1,110,970 Pond 96, Halite Aquifer 214 908 4,835 214 908 4,835 Pond 98, Halite Aquifer 221 868 4,623 221 868 4,623 Pond 113, Halite Aquifer 205 13,754 73,213 205 13,754 73,213 Total Indicated Resources 44 451,101 2,401,218 44 451,101 2,401,218 Measured + Indicated Resources Great Salt Lake North Arm 51 226,860 1,207,577 51 226,860 1,207,577 Great Salt Lake South Arm (5) 25 208,711 1,110,970 25 208,711 1,110,970 Pond 96, Halite Aquifer 214 908 4,835 214 908 4,835 Pond 98, Halite Aquifer 221 868 4,623 221 868 4,623 Pond 113, Halite Aquifer 205 13,754 73,213 205 13,754 73,213 Total Measured + Indicated Resources 44 451,101 2,401,218 44 451,101 2,401,218 Inferred Resources Pond 1b, Halite Aquifer 318 2,032 10,815 318 2,032 10,815 Pond 97, Halite Aquifer 212 674 3,589 212 674 3,589 Pond 114, Halite Aquifer 245 5,789 30,817 245 5,789 30,817 Total Inferred Resources 256 8,495 45,221 256 8,495 45,221 (1) Mineral resources are not mineral reserves and do not have demonstrated economic viability.
Ogden Facility – Summary of Lithium and LCE Mineral Resources at September 30, 2023 and 2022 September 30, 2023 September 30, 2022 Resource Area Average Grade (mg/L) (4) Lithium Resources (tonnes) (1)(2)(3) LCE Resources (tonnes) (1)(2)(3)(6) Average Grade (mg/L) (4) Lithium Resources (tonnes) (1)(2)(3) LCE Resources (tonnes) (1)(2)(3)(6) Measured Resources Total Measured Resources — — — — — — Indicated Resources Great Salt Lake North Arm 51 226,860 1,207,577 51 226,860 1,207,577 Great Salt Lake South Arm (5) 25 208,711 1,110,970 25 208,711 1,110,970 Pond 96, Halite Aquifer 214 908 4,835 214 908 4,835 Pond 98, Halite Aquifer 221 868 4,623 221 868 4,623 Pond 113, Halite Aquifer 205 13,754 73,213 205 13,754 73,213 Total Indicated Resources 44 451,101 2,401,218 44 451,101 2,401,218 Measured + Indicated Resources Great Salt Lake North Arm 51 226,860 1,207,577 51 226,860 1,207,577 Great Salt Lake South Arm (5) 25 208,711 1,110,970 25 208,711 1,110,970 Pond 96, Halite Aquifer 214 908 4,835 214 908 4,835 Pond 98, Halite Aquifer 221 868 4,623 221 868 4,623 Pond 113, Halite Aquifer 205 13,754 73,213 205 13,754 73,213 Total Measured + Indicated Resources 44 451,101 2,401,218 44 451,101 2,401,218 Inferred Resources Pond 1b, Halite Aquifer 318 2,032 10,815 318 2,032 10,815 Pond 97, Halite Aquifer 212 674 3,589 212 674 3,589 Pond 114, Halite Aquifer 245 5,789 30,817 245 5,789 30,817 Total Inferred Resources 256 8,495 45,221 256 8,495 45,221 (1) Mineral resources are not mineral reserves and do not have demonstrated economic viability.
(2) Fiscal year 2022 production tons are less than our reserve reduction due to process timing of extracting tons to producing finished product. See Ogden Facility below for additional information regarding our sodium, sodium chloride, magnesium and magnesium chloride reserve estimates at the Ogden facility. Our production facilities have access to vast mineral deposits.
(2) Fiscal year 2023 and 2022 production tons are less than our reserve reduction due to process timing of extracting tons to producing finished product. See Ogden Facility below for additional information regarding our sodium, sodium chloride, magnesium and magnesium chloride reserve estimates at the Ogden facility. Our production facilities have access to vast mineral deposits.
As of September 30, 2022, we had ten mining properties, as summarized in the table below: Location Segment Use Stage United States Cote Blanche Island, Louisiana Salt Rock salt mine Production Lyons, Kansas Salt Evaporated salt facility Production Ogden, Utah Salt, Plant Nutrition SOP, solar salt and magnesium chloride facility Production Canada Amherst, Nova Scotia Salt Evaporated salt facility Production Goderich, Ontario Salt Rock salt mine Production Goderich, Ontario Salt Evaporated salt facility Production Unity, Saskatchewan Salt Evaporated salt facility Production Wynyard, Saskatchewan Plant Nutrition SOP facility Exploration United Kingdom Winsford, Cheshire Salt Rock salt mine Production Chile Atacama Desert Salt N/A Exploration We are the sole operator of each of our mining properties and we own all of the ownership interests in our mining operations.
As of September 30, 2023, we had ten mining properties, as summarized in the table below: Location Segment Use Stage United States Cote Blanche Island, Louisiana Salt Rock salt mine Production Lyons, Kansas Salt Evaporated salt facility Production Ogden, Utah Salt, Plant Nutrition SOP, solar salt and magnesium chloride facility Production Canada Amherst, Nova Scotia Salt Evaporated salt facility Production Goderich, Ontario Salt Rock salt mine Production Goderich, Ontario Salt Evaporated salt facility Production Unity, Saskatchewan Salt Evaporated salt facility Production Wynyard, Saskatchewan Plant Nutrition SOP facility Exploration United Kingdom Winsford, Cheshire Salt Rock salt mine Production Chile Atacama Desert Salt N/A Exploration We are the sole operator of each of our mining properties and we own all of the ownership interests in our mining operations.
Under the Royalty Agreement, the current royalty rates for SOP is 4.8% of gross revenues, the current royalty rate for magnesium chloride is 5% of gross revenues, and the current royalty rate for sodium chloride is $0.50/ton times the Producer Price Index.
Under the Royalty Agreement, the current royalty rate for SOP is 4.8% of gross revenues, the current royalty rate for magnesium chloride is 5% of gross revenues, and the current royalty rate for sodium chloride is $0.50/ton times the Producer Price Index.
(Cote Blanche, Louisiana) and the U.K. (Winsford, Cheshire) make up 85% of our salt production capacity as of September 30, 2022. Each of these mines is operated with modern mining equipment and utilizes subsurface improvements, such as vertical shaft lift systems, milling and crushing facilities, maintenance and repair shops and extensive raw materials handling systems.
(Cote Blanche, Louisiana) and the U.K. (Winsford, Cheshire) make up 85% of our salt production capacity as of September 30, 2023. Each of these mines is operated with modern mining equipment and utilizes subsurface improvements, such as vertical shaft lift systems, milling and crushing facilities, maintenance and repair shops and extensive raw materials handling systems.
The following table shows the estimated annual production capacity and type of salt or other mineral produced at each of our owned or leased processing locations as of September 30, 2022: Location Annual Production Capacity (1) (tons) Product Type North America Goderich, Ontario, Mine 8.0 million Rock Salt Cote Blanche, Louisiana, Mine 2.9 million Rock Salt Ogden, Utah, Plant: Salt (2) 1.5 million Solar Salt Magnesium Chloride (3) 750,000 Magnesium Chloride SOP (4) 320,000 SOP Lyons, Kansas, Plant 450,000 Mechanically-Evaporated Salt Unity, Saskatchewan, Plant 140,000 Mechanically-Evaporated Salt Goderich, Ontario, Plant 140,000 Mechanically-Evaporated Salt Amherst, Nova Scotia, Plant 130,000 Mechanically-Evaporated Salt Wynyard, Saskatchewan, Plant 40,000 SOP United Kingdom Winsford, Cheshire, Mine 2.2 million Rock Salt (1) Annual production capacity is our estimate of the tons that could be produced based on design capacity, assuming optimization of our operations, including our facilities, equipment and workforce.
The following table shows the estimated annual production capacity and type of salt or other mineral produced at each of our owned or leased processing locations as of September 30, 2023: Location Annual Production Capacity (1) (tons) Product Type North America Goderich, Ontario, Mine 8.0 million Rock Salt Cote Blanche, Louisiana, Mine 2.9 million Rock Salt Ogden, Utah, Plant: Salt (2) 1.5 million Solar Salt Magnesium Chloride (3) 750,000 Magnesium Chloride SOP (4) 320,000 SOP Lyons, Kansas, Plant 450,000 Mechanically-Evaporated Salt Unity, Saskatchewan, Plant 140,000 Mechanically-Evaporated Salt Goderich, Ontario, Plant 140,000 Mechanically-Evaporated Salt Amherst, Nova Scotia, Plant 135,000 Mechanically-Evaporated Salt Wynyard, Saskatchewan, Plant 40,000 SOP United Kingdom Winsford, Cheshire, Mine 2.2 million Rock Salt (1) Annual production capacity is our estimate of the tons that could be produced based on design capacity, assuming optimization of our operations, including our facilities, equipment and workforce.
Recent analysis and evaluations conducted by the Company have also demonstrated that this magnesium chloride solution contains material quantities of lithium, which, when combined with the naturally occurring lithium content of the Great Salt Lake, forms the basis for the estimates of the lithium mineral resources at the Ogden facility summarized below.
Recent analysis and evaluations conducted by the Company have also demonstrated that this magnesium chloride solution contains material quantities of lithium (as a lithium chloride salt), which, when combined with the naturally occurring lithium content of the Great Salt Lake, forms the basis for the estimates of the lithium mineral resources at the Ogden facility summarized below.
Maitland River is permitted pursuant to Certificate of Approval 2342-7ULQEU and Environmental Compliance Approval 1236-8YGK8A, respectively, issued by the Ontario Ministry of Environment, Conservation and Parks. Summaries of the Goderich mine’s salt mineral resources and mineral reserves as of September 30, 2022 and 2021 are shown in Tables 12 and 13, respectively.
Maitland River is permitted pursuant to Certificate of Approval 2342-7ULQEU and Environmental Compliance Approval 1236-8YGK8A, respectively, issued by the Ontario Ministry of Environment, Conservation and Parks. Summaries of the Goderich mine’s salt mineral resources and mineral reserves as of September 30, 2023 and 2022 are shown in Tables 12 and 13, respectively.
The Company is able to extract and produce salts from the lake by rights derived from a combination of: (i) lakebed lease agreements (the “Lakebed Leases”) with the Utah Department of Natural Resources, Division of Forestry, Fire and State Lands (the “Utah FFSL”); (ii) one lease for upland evaporation ponds (the “Upland Pond Lease”) with the State of Utah School and Institutional Trust Lands Administration (the “Utah SITLA”); (iii) seven non-solar leases and easements; (iv) water rights for consumption of brines and 37 2022 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. freshwater (the “Water Rights”) through the Utah Department of Natural Resources, Division of Water Rights; (v) a large mine operation mineral extraction permit (GSL Mine M/057/0002) (the “Mineral Extraction Permit”) through the Utah Department of Natural Resources, Division of Oil, Gas and Mining (the “Utah DOGM”); and (vi) a royalty agreement, dated September 1, 1962 (as amended from time to time, the “Royalty Agreement”), with the Utah State Land Board.
The Company is able to extract and produce salts from the lake by rights derived from a combination of: (i) lakebed lease agreements (the “Lakebed Leases”) with the Utah Department of Natural Resources, Division of Forestry, Fire and State Lands (the “Utah FFSL”); (ii) one lease for upland evaporation ponds (the “Upland Pond Lease”) with the State of Utah School and Institutional Trust Lands Administration (the “Utah SITLA”); (iii) seven non-solar leases and easements; (iv) water rights for consumption of brines and 38 2023 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. freshwater (the “Water Rights”) through the Utah Department of Natural Resources, Division of Water Rights; (v) a large mine operation mineral extraction permit (GSL Mine M/057/0002) (the “Mineral Extraction Permit”) through the Utah Department of Natural Resources, Division of Oil, Gas and Mining (the “Utah DOGM”); and (vi) a royalty agreement for extraction of all mineral salts, dated September 1, 1962 (as amended from time to time, the “Royalty Agreement”), with the Utah State Land Board.
From September 30, 2021 to September 30, 2022, for both lithium and LCE, combined measured and indicated resources remained the same as there was no commercial production of lithium. Key assumptions and parameters relating to the lithium and LCE mineral resources at the Ogden facility are discussed in Section 11 of the Ogden Lithium TRS.
From September 30, 2022 to September 30, 2023, for both lithium and LCE, combined measured and indicated resources remained the same as there was no commercial production of lithium. Key assumptions and parameters relating to the lithium and LCE mineral resources at the Ogden facility are discussed in Section 11 of the Ogden Lithium TRS.
A summary of the Ogden facility’s lithium and LCE mineral resources as of September 30, 2022 and 2021 is shown in Table 9. Joseph Havasi, who is employed full-time as the Vice President, Natural Resources, of the Company served as the QP who prepared the estimates of lithium and LCE mineral resources at the Ogden facility.
A summary of the Ogden facility’s lithium and LCE mineral resources as of September 30, 2023 and 2022 is shown in Table 9. Joseph Havasi, who is employed full-time as the Vice President, Natural Resources, of the Company served as the QP who prepared the estimates of lithium and LCE mineral resources at the Ogden facility.
(7) Reported potassium concentration for the Great Salt Lake assumes an indicative lake level of 4,194.4 feet in the south arm and 4,193.5 feet in the north arm. 42 2022 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. Table 5.
(7) Reported potassium concentration for the Great Salt Lake assumes an indicative lake level of 4,194.4 feet in the south arm and 4,193.5 feet in the north arm. 42 2023 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. Table 4.
Actual annual salt, magnesium chloride and SOP production volume levels may vary from the annual production capacity shown in the table above due to a number of factors, including variations in the winter weather conditions which impact demand for highway and consumer deicing products, the quality of the reserves and the nature of the geologic formation that we are mining at a particular time, unplanned downtime due to safety concerns, incidents and mechanical failures, and other operating conditions. 30 2022 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC.
Actual annual salt, magnesium chloride and SOP production volume levels may vary from the annual production capacity shown in the table above due to a number of factors, including variations in the winter weather conditions which impact demand for highway and consumer deicing products, the quality of the reserves and the nature of the geologic formation that we are mining at a particular time, unplanned downtime due to safety concerns, incidents and mechanical failures, and other operating conditions. 31 2023 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC.
All levels in the current mine plan, 1,300-foot through the 1,900-foot levels, are currently mining or are planned to be operated in the same manner, with the 51 2022 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. same mining parameters and with the same set of unit operations, altered only by the footprint of the mining of the room and pillar method as modified to reflect the constraints of the planned level and the lateral constraints of the salt dome contours of each level.
All levels in the current mine plan, 1,300-foot through the 1,900-foot levels, are currently mining or are planned to be operated in the same manner, with the same mining parameters and with the same set of unit operations, altered only by the footprint of the mining of the room and 52 2023 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. pillar method as modified to reflect the constraints of the planned level and the lateral constraints of the salt dome contours of each level.
Summaries of the Ogden facility’s potassium and SOP mineral resources and mineral reserves as of September 30, 2022 and 2021 are shown in Tables 3 and 4, respectively. Summaries of the Ogden facility’s magnesium and magnesium chloride mineral resources and mineral reserves as of September 30, 2022 and 2021 are shown in Tables 5 and 6, respectively.
Summaries of the Ogden facility’s potassium and SOP mineral resources and mineral reserves as of September 30, 2023 and 2022 are shown in Tables 3 and 4, respectively. Summaries of the Ogden facility’s magnesium and magnesium chloride mineral resources and mineral reserves as of September 30, 2023 and 2022 are shown in Tables 5 and 6, respectively.
The Lakebed Leases and Upland Pond Lease were issued between 1965 and 2022 and cover a total lease area of approximately 177,513 acres among 12 active leases, though not all are currently utilized. Each of the Lakebed Leases remains in effect until the termination of the Royalty Agreement.
The Lakebed Leases and Upland Pond Lease were issued between 1965 and 2022 and cover a total lease area of approximately 177,513 acres among 12 active leases, though not all are currently utilized. Each of the Lakebed Leases, except Mineral Lease 20000107, remains in effect until the termination of the Royalty Agreement.
Mechanically-evaporated salt is primarily sold through our consumer and industrial salt product lines. • Solar Evaporation - For a description of the solar evaporation process, see “—Ogden Facility” below. 29 2022 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. Our current estimated production capacity is approximately 16.2 million tons of salt and 360,000 tons of SOP per year.
Mechanically-evaporated salt is primarily sold through our consumer and industrial salt product lines. • Solar Evaporation - For a description of the solar evaporation process, see “—Ogden Facility” below. 30 2023 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. Our current estimated production capacity is approximately 16.2 million tons of salt and 360,000 tons of SOP per year.
(7) Reported magnesium concentration for the Great Salt Lake assumes an indicative lake level of 4,194.4 feet in the south arm and 4,193.5 feet in the north arm. 44 2022 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. Table 7.
(7) Reported magnesium concentration for the Great Salt Lake assumes an indicative lake level of 4,194.4 feet in the south arm and 4,193.5 feet in the north arm. 44 2023 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. Table 6.
Among other differences, subpart 1300 of Regulation S-K requires us to disclose our mineral resources, in addition to our mineral reserves, as of the end of our most recently completed fiscal year both in the aggregate and for each of our individually material mining properties.
Subpart 1300 of Regulation S-K requires us to disclose our mineral resources, in addition to our mineral reserves, as of the end of our most recently completed fiscal year both in the aggregate and for each of our individually material mining properties.
Summaries of the Ogden facility’s sodium and sodium chloride mineral resources and mineral reserves as of September 30, 2022 and 2021 are shown in Tables 7 and 8, respectively.
Summaries of the Ogden facility’s sodium and sodium chloride mineral resources and mineral reserves as of September 30, 2023 and 2022 are shown in Tables 7 and 8, respectively.
Summaries of the Cote Blanche mine’s salt mineral resources and mineral reserves as of September 30, 2022 and 2021 are shown in Tables 10 and 11, respectively.
Summaries of the Cote Blanche mine’s salt mineral resources and mineral reserves as of September 30, 2023 and 2022 are shown in Tables 10 and 11, respectively.
The Goderich mine operates under two air permits issued by the Ontario Ministry of Environment, Conservation and Parks, one for the lab (8-1131-96-007), and the other for the garage for welding exhaust (5522-78NUN2). Site drainage into Snug Harbour and the 57 2022 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC.
The Goderich mine operates under two air permits issued by the Ontario Ministry of Environment, Conservation and Parks, one for the lab (8-1131-96-007), and the other for the garage for welding exhaust (5522-78NUN2). Site drainage into Snug Harbour and the 58 2023 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC.
The Cote Blanche mine is located in south-central Louisiana in the Parish of St. Mary (T15S, R7E), at the northern edge of Cote Blanche Hummoch, commonly called “Cote Blanche Island.” Maps of the Cote Blanche mine property are shown in Figures 3 and 4. 48 2022 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. Figure 3.
The Cote Blanche mine is located in south-central Louisiana in the Parish of St. Mary (T15S, R7E), at the northern edge of Cote Blanche Hummoch, commonly called “Cote Blanche Island.” Maps of the Cote Blanche mine property are shown in Figures 3 and 4. 49 2023 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. Figure 3.
Mineral resources are not mineral reserves and do not have demonstrated economic viability. There is no certainty that all or any part of the mineral resources will be converted into mineral reserves upon application of modifying factors. 32 2022 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC.
Mineral resources are not mineral reserves and do not have demonstrated economic viability. There is no certainty that all or any part of the mineral resources will be converted into mineral reserves upon application of modifying factors. 33 2023 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC.
(9) The 1,700-foot and 1,900-foot levels have been approximated using the 1,300-foot and 1,500-foot level contours, respectively, in alignment to the 400-foot contact distance restriction and site and safety constraints. 53 2022 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. Table 11.
(9) The 1,700-foot and 1,900-foot levels have been approximated using the 1,300-foot and 1,500-foot level contours, respectively, in alignment to the 400-foot contact distance restriction and site and safety constraints. 54 2023 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. Table 11.
Based on the proposed mine layout and using a 6.5 million tons per annum average production run rate assumption, the Goderich mine has a current mine life of approximately 56 2022 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. 72 years, assuming the Company is able to successfully negotiate an extension of the lease following the expiration of the 21-year renewal term in 2043, which the Company currently expects.
Based on the proposed mine layout and using a 6.5 million tons per annum average production run rate assumption, the Goderich mine has a current mine life of approximately 57 2023 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. 70 years, assuming the Company is able to successfully negotiate an extension of the lease following the expiration of the 21-year renewal term in 2043, which the Company currently expects.
The pricing data is based on a five-year average of historical gross sales data for sodium chloride of $62.41 per ton. Gross sales prices are projected to increase to approximately $215.66 per ton for NaCl through year 2161 (the current expected end of mine life).
The pricing data is based on a five-year average of historical gross sales data for sodium chloride of $82.65 per ton. Gross sales prices are projected to increase to approximately $215.66 per ton for NaCl through year 2161 (the current expected end of mine life).
(7) Reported sodium concentration for the Great Salt Lake assumes an indicative lake level of 4,194.4 feet in the south arm and 4,193.5 feet in the north arm. 45 2022 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. Table 8.
(7) Reported sodium concentration for the Great Salt Lake assumes an indicative lake level of 4,194.4 feet in the south arm and 4,193.5 feet in the north arm. 46 2023 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. Table 8.
(7) Reported potassium concentration for the Great Salt Lake assumes an indicative lake level of 4,194.4 feet in the south arm and 4,193.5 feet in the north arm. 41 2022 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. Table 4.
(7) Reported potassium concentration for the Great Salt Lake assumes an indicative lake level of 4,194.4 feet in the south arm and 4,193.5 feet in the north arm. 43 2023 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. Table 5.
Cote Blanche Mine Property Location Map 49 2022 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. Figure 4. Aerial View of Cote Blanche Island Cote Blanche Island is situated between the Intra-Coastal Waterway and Cote Blanche Bay in the Gulf of Mexico.
Cote Blanche Mine Property Location Map 50 2023 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. Figure 4. Aerial View of Cote Blanche Island Cote Blanche Island is situated between the Intra-Coastal Waterway and Cote Blanche Bay in the Gulf of Mexico.
The milling and crushing facilities were constructed when the Cote Blanche mine developed the 1,500 foot level in 2001. As of September 30, 2022, the net book value for the plant, property and equipment at the Cote Blanche mine is $60,600,000, exclusive of mineral rights and the value of assets leased under operating leases.
The milling and crushing facilities were constructed when the Cote Blanche mine developed the 1,500 foot level in 2001. As of September 30, 2023, the net book value for the plant, property and equipment at the Cote Blanche mine is $69,500,000, exclusive of mineral rights and the value of assets leased under operating leases.
See Section 11 of the Ogden Lithium TRS (as defined below) for a discussion of the material assumptions underlying the cut-off grade analysis. 33 2022 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. Table 2.
See Section 11 of the Ogden Lithium TRS (as defined below) for a discussion of the material assumptions underlying the cut-off grade analysis. 34 2023 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. Table 2.
Reported concentrations for the Great Salt Lake assume an indicative lake level of 4,194.4 feet in the south arm and 4,193.5 feet in the north arm. 34 2022 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC.
Reported concentrations for the Great Salt Lake assume an indicative lake level of 4,194.4 feet in the south arm and 4,193.5 feet in the north arm. 35 2023 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC.
(9) The 1,700-foot and 1,900-foot levels have been approximated using the 1,300-foot and 1,500-foot level contours, respectively, in alignment to the 400-foot contact distance restriction and site and safety constraints. From September 30, 2021 to September 30, 2022, combined measured and indicated resources at the Cote Blanche mine decreased by approximately 0.25% and total reserves decreased by approximately 0.75%.
(9) The 1,700-foot and 1,900-foot levels have been approximated using the 1,300-foot and 1,500-foot level contours, respectively, in alignment to the 400-foot contact distance restriction and site and safety constraints. From September 30, 2022 to September 30, 2023, combined measured and indicated resources at the Cote Blanche mine decreased by approximately 0.56% and total reserves decreased by approximately 0.77%.
The net book value for the plant, property and equipment at the Goderich mine is $210,700,000 as of September 30, 2022, exclusive of mineral rights and the value of assets leased under operating leases. The Goderich mine has procured and is operating in compliance with all required operating licenses, including permits pertaining to mineral extraction, effluent discharge and air permitting.
The net book value for the plant, property and equipment at the Goderich mine is $206,500,000 as of September 30, 2023, exclusive of mineral rights and the value of assets leased under operating leases. The Goderich mine has procured and is operating in compliance with all required operating licenses, including permits pertaining to mineral extraction, effluent discharge and air permitting.
Summary of Mineral Resources and Reserves Summaries of our mineral resources and reserves at the end of fiscal 2022 are set forth in Tables 1 and 2. 31 2022 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. Table 1.
Summary of Mineral Resources and Reserves Summaries of our mineral resources and reserves at the end of fiscal 2023 are set forth in Tables 1 and 2. 32 2023 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. Table 1.
Reported concentrations for the Great Salt Lake assume an indicative lake level of 4,194.4 feet in the south arm and 4,193.5 feet in the north arm. (6) With respect to the Ogden facility, based on pricing data based on a five-year average (2017 through 2021) of historical sales data for SOP of $573 per ton.
Reported concentrations for the Great Salt Lake assume an indicative lake level of 4,194.4 feet in the south arm and 4,193.5 feet in the north arm. (6) With respect to the Ogden facility, based on pricing data based on a five-year average (2019 through 2023) of historical sales data for SOP of $647 per ton.
The pricing data is based on a five-year average of historical gross sales data for MgCl of $52.08 per ton. Gross sales prices are projected to increase to approximately $816.73 per ton for magnesium chloride through year 2161 (the current expected end of mine life).
(5) The pricing data is based on a five-year average of historical gross sales data for MgCl of $66.20 per ton. Gross sales prices are projected to increase to approximately $816.73 per ton for magnesium chloride through year 2161 (the current expected end of mine life).
(7) Reported sodium concentration for the Great Salt Lake assumes an indicative lake level of 4,194.4 feet in the south arm and 4,193.5 feet in the north arm. From September 30, 2021 to September 30, 2022, for both potassium and SOP, combined measured and indicated resources decreased by approximately 0.29% and total reserves decreased by approximately 0.54%.
(7) Reported sodium concentration for the Great Salt Lake assumes an indicative lake level of 4,194.4 feet in the south arm and 4,193.5 feet in the north arm. From September 30, 2022 to September 30, 2023, for both potassium and SOP, combined measured and indicated resources decreased by approximately 0.81% and total reserves decreased by approximately 0.52%.
The pricing data is based on a five-year average of historical gross sales data for MgCl of $52.08 per ton. Gross sales prices are projected to increase to approximately and $816.73 per ton for MgCl through year 2161 (the current expected end of mine life).
(5) The pricing data is based on a five-year average of historical gross sales data for MgCl of $66.20 per ton. Gross sales prices are projected to increase to approximately and $816.73 per ton for MgCl through year 2161 (the current expected end of mine life).
(7) Reported magnesium concentration for the Great Salt Lake assumes an indicative lake level of 4,194.4 feet in the south arm and 4,193.5 feet in the north arm. 43 2022 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. Table 6.
(7) Reported magnesium concentration for the Great Salt Lake assumes an indicative lake level of 4,194.4 feet in the south arm and 4,193.5 feet in the north arm. 45 2023 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. Table 7.
The development of this project will require significant infrastructure to establish extraction and logistics capabilities. As of September 30, 2022 our investment in these rights totaled $8.5 million.
The development of this project would require significant infrastructure to establish extraction and logistics capabilities. As of September 30, 2023 our investment in these rights totaled $8.5 million.
The primary product currently produced at the Ogden facility is SOP (which is a potassium-rich salt used as plant fertilizer), with coproduct production of sodium chloride (which is used for highway deicing and chemical applications) and magnesium chloride (which is used in deicing, dust control and unpaved road surface stabilization applications).
The primary product currently produced at the Ogden facility is SOP (which is a potassium-rich salt used as plant fertilizer), with coproduct production of sodium chloride (which is used for highway deicing and chemical applications) and magnesium chloride (which is used in deicing, dust control and unpaved road surface stabilization applications and is an ingredient in our fire retardant products).
Maps of the Ogden facility are shown in Figures 1 and 2. 35 2022 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. Figure 1. Ogden Facility Property Location Map 36 2022 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. Figure 2.
Maps of the Ogden facility are shown in Figures 1 and 2. 36 2023 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. Figure 1. Ogden Facility Property Location Map 37 2023 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. Figure 2.
(5) With respect to the Ogden facility, based on pricing data based on a five-year average (2017 through 2021) of historical sales data for SOP of $573 per ton. Sales prices are projected to increase to approximately $8,529 per ton through the current expected end of mine life.
(5) With respect to the Ogden facility, based on pricing data based on a five-year average (2019 through 2023) of historical sales data for SOP of $647 per ton. Sales prices are projected to increase to approximately $8,529 per ton through the current expected end of mine life.
The pricing data is based on a five-year average (2017 through 2021) of historical sales data for SOP of $573 per ton. Sales prices are projected to increase to approximately $8,529 per ton for SOP through year 2161 (the current expected end of mine life).
The pricing data is based on a five-year average (2019 through 2023) of historical sales data for SOP of $647 per ton. Sales prices are projected to increase to approximately $8,529 per ton for SOP through year 2161 (the current expected end of mine life).
The following map shows the locations of our mining properties, as of September 30, 2022: 28 2022 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC.
The following map shows the locations of our mining properties, as of September 30, 2023: 29 2023 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC.
Goderich Mine – Summary of Salt Mineral Resources at September 30, 2022 and 2021 Salt Resources (tons) (1)(2)(4)(5)(6)(7)(8) Resource Area (3)(9) September 30, 2022 September 30, 2021 Measured Resources — — Indicated Resources 1,469,000,089 1,485,710,000 Measured + Indicated Resources 1,469,000,089 1,485,710,000 Inferred Resources 148,200,000 148,200,000 (1) Mineral resources are reported in situ.
Goderich Mine – Summary of Salt Mineral Resources at September 30, 2023 and 2022 Salt Resources (tons) (1)(2)(4)(5)(6)(7)(8) Resource Area (3)(9) September 30, 2023 September 30, 2022 Measured Resources — — Indicated Resources 1,453,008,026 1,469,000,089 Measured + Indicated Resources 1,453,008,026 1,469,000,089 Inferred Resources 148,200,000 148,200,000 (1) Mineral resources are reported in situ.
Ogden Facility – Summary of Potassium and SOP Mineral Reserves at September 30, 2022 and 2021 September 30, 2022 September 30, 2021 Reserve Area Average Potassium Grade (mg/L) (7) Potassium Reserves (tons) (1)(2)(4)(5) Cut-Off Grade (mg/L) (6) SOP Reserves (tons) (1)(2)(3)(4)(5) Average Potassium Grade (mg/L) (7) Potassium Reserves (tons) (1)(2)(4)(5) Cut-Off Grade (mg/L) (6) SOP Reserves (tons) (1)(2)(3)(4)(5) Proven Reserves Total Proven Reserves — — — — — — — — Probable Reserves Great Salt Lake North Arm 7,320 20,452,413 4,000 45,522,980 7,320 20,562,500 4,000 45,768,145 Great Salt Lake South Arm — — — — — — — — Total Probable Reserves 7,320 20,452,413 4,000 45,522,980 7,320 20,562,500 4,000 45,768,145 Total Reserves Great Salt Lake North Arm 7,320 20,452,413 4,000 45,522,980 7,320 20,562,500 4,000 45,768,145 Great Salt Lake South Arm — — — — — — — — Total Reserves 7,320 20,452,413 4,000 45,522,980 7,320 20,562,500 4,000 45,768,145 (1) Mineral reserves are as recovered, saleable product.
Ogden Facility – Summary of Potassium and SOP Mineral Reserves at September 30, 2023 and 2022 September 30, 2023 September 30, 2022 Reserve Area Average Potassium Grade (mg/L) (7) Potassium Reserves (tons) (1)(2)(4)(5) Cut-Off Grade (mg/L) (6) SOP Reserves (tons) (1)(2)(3)(4)(5) Average Potassium Grade (mg/L) (7) Potassium Reserves (tons) (1)(2)(4)(5) Cut-Off Grade (mg/L) (6) SOP Reserves (tons) (1)(2)(3)(4)(5) Proven Reserves Total Proven Reserves — — — — — — — — Probable Reserves Great Salt Lake North Arm 7,320 20,345,292 4,000 45,284,552 7,320 20,452,413 4,000 45,522,980 Great Salt Lake South Arm — — — — — — — — Total Probable Reserves 7,320 20,345,292 4,000 45,284,552 7,320 20,452,413 4,000 45,522,980 Total Reserves Great Salt Lake North Arm 7,320 20,345,292 4,000 45,284,552 7,320 20,452,413 4,000 45,522,980 Great Salt Lake South Arm — — — — — — — — Total Reserves 7,320 20,345,292 4,000 45,284,552 7,320 20,452,413 4,000 45,522,980 (1) Mineral reserves are as recovered, saleable product.
The Company has certificated all of its Water Rights, meaning that demonstration of actual use in order to retain the right in perpetuity has been approved and authorized. The Mineral Extraction Permit (GSL Mine M/057/0002) was granted by the Utah DOGM.
The Company has certificated the Water Rights that contribute to the 156,000 acre feet of extraction rights, meaning that demonstration of actual use in order to retain the right in perpetuity has been approved and authorized. The Mineral Extraction Permit (GSL Mine M/057/0002) was granted by the Utah DOGM.
Ogden Facility – Summary of Magnesium and Magnesium Chloride Mineral Reserves at September 30, 2022 and 2021 September 30, 2022 September 30, 2021 Reserve Area Average Magnesium Grade (mg/L) (7) Magnesium Reserves (tons) (1)(2)(4)(5) Cut-Off Grade (mg/L) (6) Magnesium Chloride Reserves (tons) (1)(2)(3)(4)(5) Average Magnesium Grade (mg/L) (7) Magnesium Reserves (tons) (1)(2)(4)(5) Cut-Off Grade (mg/L) (6) Magnesium Chloride Reserves (tons) (1)(2)(3)(4)(5) Proven Reserves Total Proven Reserves — — — — — — — — Probable Reserves Great Salt Lake North Arm 11,120 24,214,744 8,638 94,752,292 11,120 24,373,669 8,638 95,480,000 Great Salt Lake South Arm 4,785 — 3,039 — 4,785 — 3,039 — Total Probable Reserves 24,214,744 94,752,292 24,373,669 95,480,000 Total Reserves Great Salt Lake North Arm 11,120 24,214,744 8,638 94,752,292 11,120 24,373,669 8,638 95,480,000 Great Salt Lake South Arm 4,785 — 3,039 — 4,785 — 3,039 — Total Reserves — 24,214,744 — 94,752,292 24,373,669 95,480,000 (1) Mineral reserves are as recovered, saleable product.
Ogden Facility – Summary of Magnesium and Magnesium Chloride Mineral Reserves at September 30, 2023 and 2022 September 30, 2023 September 30, 2022 Reserve Area Average Magnesium Grade (mg/L) (7) Magnesium Reserves (tons) (1)(2)(4)(5) Cut-Off Grade (mg/L) (6) Magnesium Chloride Reserves (tons) (1)(2)(3)(4)(5) Average Magnesium Grade (mg/L) (7) Magnesium Reserves (tons) (1)(2)(4)(5) Cut-Off Grade (mg/L) (6) Magnesium Chloride Reserves (tons) (1)(2)(3)(4)(5) Proven Reserves Total Proven Reserves — — — — — — — — Probable Reserves Great Salt Lake North Arm 11,120 24,027,805 8,638 94,020,802 11,120 24,214,744 8,638 94,752,292 Great Salt Lake South Arm 4,785 — 3,039 — 4,785 — 3,039 — Total Probable Reserves 24,027,805 94,020,802 24,214,744 94,752,292 Total Reserves Great Salt Lake North Arm 11,120 24,027,805 8,638 94,020,802 11,120 24,214,744 8,638 94,752,292 Great Salt Lake South Arm 4,785 — 3,039 — 4,785 — 3,039 — Total Reserves — 24,027,805 — 94,020,802 — 24,214,744 — 94,752,292 (1) Mineral reserves are as recovered, saleable product.
For simplicity, all sales are assumed at t he lower value (and higher tonnage) product, rock salt and are based on pricing data described in Section 16 of the Goderich TRS. The pricing data is based on a five-year average (2017 through 2021) of historical sales data for rock salt for road deicing of $60.58 per ton.
For simplicity, all sales are assumed at t he lower value (and higher tonnage) product, rock salt and are based on pricing data described in Section 16 of the Goderich TRS. The pricing data is based on a five-year average (2019 through 2023) of historical sales data for rock salt for road deicing of $64.12 per ton.
For simplicity, all sales are assumed at the lower value (and higher tonnage) product, rock salt and are based on pricing data described in Section 16 of the Goderich TRS. The pricing data is based o n a five-year average (2017 through 2021) of historical sales data for rock salt for road deicing of $60.58 per ton.
For simplicity, all sales are assumed at the lower value (and higher tonnage) product, rock salt and are based on pricing data described in Section 16 of the Goderich TRS. The pricing data is based o n a five-year average (2019 through 2023) of historical sales data for rock salt for road deicing of $64.12 per ton.
For simplicity, all sales are assumed at the lower value (and higher tonnage) product, rock salt, and are based on pricing data described in Section 16 of the Cote Blanche TRS. The pricing data is based on a five-year average (2017 through 2021) of historical sales data for rock salt for road deicing of $61.41 per ton.
For simplicity, all sales are assumed at the lower value (and higher tonnage) product, rock salt, and are based on pricing data described in Section 16 of the Cote Blanche TRS. The pricing data is based on a five-year average (2019 through 2023) of historical sales data for rock salt for road deicing of $68.38 per ton.
For simplicity, all sales are assumed at the lower value (and higher tonnage) product, rock salt, and are based on pricing data described in Section 16 of the Cote Blanche TRS. The pricing data is based on a five-year average (2017 through 2021) of historical sales data for rock salt for road deicing of $61.41 per ton.
For simplicity, all sales are assumed at the lower value (and higher tonnage) product, rock salt, and are based on pricing data described in Section 16 of the Cote Blanche TRS. The pricing data is based on a five-year average (2019 through 2023) of historical sales data for rock salt for road deicing of $68.38 per ton.
Ogden Facility – Summary of Sodium and Sodium Chloride Mineral Reserves at September 30, 2022 and 2021 September 30, 2022 September 30, 2021 Reserve Area Average Sodium Grade (mg/L) (7) Sodium Reserves (tons) (1)(2)(4)(5) Cut-Off Grade (mg/L) (6) Sodium Chloride Reserves (tons) (1)(2)(3)(4)(5) Average Sodium Grade (mg/L) (7) Sodium Reserves (tons) (1)(2)(4)(5) Cut-Off Grade (mg/L) (6) Sodium Chloride Reserves (tons) (1)(2)(3)(4)(5) Proven Reserves Total Proven Reserves — — — — — — — — Probable Reserves Great Salt Lake North Arm 97,530 62,786,302 75,757 159,602,779 97,530 63,305,000 75,757 160,930,000 Great Salt Lake South Arm 46,298 — 40,365 — 46,298 — 40,365 — Total Probable Reserves 62,786,302 159,602,779 63,305,000 160,930,000 Total Reserves Great Salt Lake North Arm 97,530 62,786,302 75,757 159,602,779 97,530 63,305,000 75,757 160,930,000 Great Salt Lake South Arm 46,298 — 40,365 — 46,298 — 40,365 — Total Reserves — 62,786,302 — 159,602,779 63,305,000 160,930,000 (1) Mineral reserves are as recovered, saleable product.
Ogden Facility – Summary of Sodium and Sodium Chloride Mineral Reserves at September 30, 2023 and 2022 September 30, 2023 September 30, 2022 Reserve Area Average Sodium Grade (mg/L) (7) Sodium Reserves (tons) (1)(2)(4)(5) Cut-Off Grade (mg/L) (6) Sodium Chloride Reserves (tons) (1)(2)(3)(4)(5) Average Sodium Grade (mg/L) (7) Sodium Reserves (tons) (1)(2)(4)(5) Cut-Off Grade (mg/L) (6) Sodium Chloride Reserves (tons) (1)(2)(3)(4)(5) Proven Reserves Total Proven Reserves — — — — — — — — Probable Reserves Great Salt Lake North Arm 97,530 62,323,098 75,757 158,425,314 97,530 62,786,302 75,757 159,602,779 Great Salt Lake South Arm 46,298 — 40,365 — 46,298 — 40,365 — Total Probable Reserves 62,323,098 158,425,314 62,786,302 159,602,779 Total Reserves Great Salt Lake North Arm 97,530 62,323,098 75,757 158,425,314 97,530 62,786,302 75,757 159,602,779 Great Salt Lake South Arm 46,298 — 40,365 — 46,298 — 40,365 — Total Reserves — 62,323,098 — 158,425,314 — 62,786,302 — 159,602,779 (1) Mineral reserves are as recovered, saleable product.
Goderich Mine – Summary of Salt Mineral Reserves at September 30, 2022 and 2021 Salt Reserves (tons) (1)(2)(3)(4)(5)(6)(7)(8) Reserve Area (3)(9) September 30, 2022 September 30, 2021 Proven Reserves — — Probable Reserves 463,724,933 470,030,000 Total Reserves 463,724,933 470,030,000 (1) Ore reserves are as recovered, saleable product.
Goderich Mine – Summary of Salt Mineral Reserves at September 30, 2023 and 2022 Salt Reserves (tons) (1)(2)(3)(4)(5)(6)(7)(8) Reserve Area (3)(9) September 30, 2023 September 30, 2022 Proven Reserves — — Probable Reserves 457,690,728 463,724,933 Total Reserves 457,690,728 463,724,933 (1) Ore reserves are as recovered, saleable product.
Among them is the assumption that there is a reasonable probability that the Company will be able to develop an appropriate method for extraction of lithium and LCE from the resources summarized above based on its successful extraction of lithium and rejection of magnesium that has been achieved with extensive onsite pilot testing and the fact that analogous DLE methods are used by existing Chinese operations and the ongoing development of similar technologies at numerous other lithium brine sources described in Section 10 of the Ogden Lithium TRS.
Among them is the assumption that there is a reasonable probability that the Company will be able to develop an appropriate method for extraction of lithium and LCE from the resources summarized above based on 48 2023 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. its successful extraction of lithium and rejection of magnesium that has been achieved with extensive onsite pilot testing and the fact that analogous direct lithium extraction (“DLE”) methods are used by existing Chinese operations and the ongoing development of similar technologies at numerous other lithium salt sources described in Section 10 of the Ogden Lithium TRS.
Ogden Facility – Summary of Potassium and SOP Mineral Resources at September 30, 2022 and 2021 September 30, 2022 September 30, 2021 Resource Area Average Potassium Grade (mg/L) (7) Potassium Resources (tons) (1)(2)(4)(5) Cut-Off Grade (mg/L) (6) SOP Resources (tons) (1)(2)(3)(4)(5) Average Potassium Grade (mg/L) (7) Potassium Resources (tons) (1)(2)(4)(5) Cut-Off Grade (mg/L) (6) SOP Resources (tons) (1)(2)(3)(4)(5) Measured Resources Total Measured Resources — — — — — — — — Indicated Resources Great Salt Lake North Arm 7,320 14,361,555 4,000 31,965,949 7,320 14,480,978 4,000 32,231,855 Great Salt Lake South Arm 3,060 26,057,971 1,660 58,000,000 3,060 26,057,971 1,660 58,000,000 Total Indicated Resources 40,419,526 89,965,949 40,538,949 90,231,855 Measured + Indicated Resources Great Salt Lake North Arm 7,320 14,361,555 4,000 31,965,949 7,320 14,480,978 4,000 32,231,855 Great Salt Lake South Arm 3,060 26,057,971 1,660 58,000,000 3,060 26,057,971 1,660 58,000,000 Total Measured + Indicated Resources 40,419,526 89,965,949 40,538,949 90,231,855 Inferred Resources Total Inferred Resources — — — — — — — — (1) Mineral resources are not mineral reserves and do not have demonstrated economic viability.
Ogden Facility – Summary of Potassium and SOP Mineral Resources at September 30, 2023 and 2022 September 30, 2023 September 30, 2022 Resource Area Average Potassium Grade (mg/L) (7) Potassium Resources (tons) (1)(2)(4)(5) Cut-Off Grade (mg/L) (6) SOP Resources (tons) (1)(2)(3)(4)(5) Average Potassium Grade (mg/L) (7) Potassium Resources (tons) (1)(2)(4)(5) Cut-Off Grade (mg/L) (6) SOP Resources (tons) (1)(2)(3)(4)(5) Measured Resources Total Measured Resources — — — — — — — — Indicated Resources Great Salt Lake North Arm 7,320 14,245,372 4,000 31,707,350 7,320 14,361,555 4,000 31,965,949 Great Salt Lake South Arm 3,060 26,057,971 1,660 58,000,000 3,060 26,057,971 1,660 58,000,000 Total Indicated Resources 40,303,343 89,707,350 40,419,526 89,965,949 Measured + Indicated Resources Great Salt Lake North Arm 7,320 14,245,372 4,000 31,707,350 7,320 14,361,555 4,000 31,965,949 Great Salt Lake South Arm 3,060 26,057,971 1,660 58,000,000 3,060 26,057,971 1,660 58,000,000 Total Measured + Indicated Resources 40,303,343 89,707,350 40,419,526 89,965,949 Inferred Resources Total Inferred Resources — — — — — — — — (1) Mineral resources are not mineral reserves and do not have demonstrated economic viability.
For simplicity, all sales are assumed at the lower value (and higher tonnage) product, rock salt, and are based on pricing data based on a five-year average (2017 through 2021) of historical sales data for rock salt for road deicing of $60.58 per ton to $61.41 per ton.
For simplicity, all sales are assumed at the lower value (and higher tonnage) product, rock salt, and are based on pricing data based on a five-year average (2017 through 2021) of historical sales data for rock salt for road deicing of $64.12 per ton to $82.65 per ton.
(10) Based on pricing data based on a five-year average (2017 through 2021) of historical sales data for magnesium chloride of $46.98 per ton. Sales prices are projected to increase to approximately $736.78 per ton through the current expected end of mine life.
(10) Based on pricing data based on a five-year average (2019 through 2023) of historical sales data for magnesium chloride of $66.20 per ton. Sales prices are projected to increase to approximately $736.78 per ton through the current expected end of mine life.
(8) Based on pricing data based on a five-year average (2017 through 2021) of historical sales data for magnesium chloride of $46.98 per ton. Sales prices are projected to increase to approximately $736.78 per ton through the current expected end of mine life.
(8) Based on pricing data based on a five-year average (2019 through 2023) of historical sales data for magnesium chloride of $66.20 per ton. Sales prices are projected to increase to approximately $736.78 per ton through the current expected end of mine life.
Ogden Facility – Summary of Magnesium and Magnesium Chloride Mineral Resources at September 30, 2022 and 2021 September 30, 2022 September 30, 2021 Resource Area Average Magnesium Grade (mg/L) (7) Magnesium Resources (tons) (1)(2)(4)(5) Cut-Off Grade (mg/L) (6) Magnesium Chloride Resources (tons) (1)(2)(3)(4)(5) Average Magnesium Grade (mg/L) (7) Magnesium Resources (tons) (1)(2)(4)(5) Cut-Off Grade (mg/L) (6) Magnesium Chloride Resources (tons) (1)(2)(3)(4)(5) Measured Resources Total Measured Resources — — — — — — — — Indicated Resources Great Salt Lake North Arm 11,120 51,927,277 8,638 203,191,436 11,120 52,000,000 8,638 204,000,000 Great Salt Lake South Arm 4,785 40,000,000 3,039 157,000,000 4,785 40,000,000 3,039 157,000,000 Total Indicated Resources 91,927,277 360,191,436 92,000,000 361,000,000 Measured + Indicated Resources Great Salt Lake North Arm 11,120 51,927,277 8,638 203,191,436 11,120 52,000,000 8,638 204,000,000 Great Salt Lake South Arm 4,785 40,000,000 3,039 157,000,000 4,785 40,000,000 3,039 157,000,000 Total Measured + Indicated Resources 91,927,277 360,191,436 92,000,000 361,000,000 Inferred Resources Total Inferred Resources — — — — — — — — (1) Mineral resources are not mineral reserves and do not have demonstrated economic viability.
Ogden Facility – Summary of Magnesium and Magnesium Chloride Mineral Resources at September 30, 2023 and 2022 September 30, 2023 September 30, 2022 Resource Area Average Magnesium Grade (mg/L) (7) Magnesium Resources (tons) (1)(2)(4)(5) Cut-Off Grade (mg/L) (6) Magnesium Chloride Resources (tons) (1)(2)(3)(4)(5) Average Magnesium Grade (mg/L) (7) Magnesium Resources (tons) (1)(2)(4)(5) Cut-Off Grade (mg/L) (6) Magnesium Chloride Resources (tons) (1)(2)(3)(4)(5) Measured Resources Total Measured Resources — — — — — — — — Indicated Resources Great Salt Lake North Arm 11,120 51,719,568 8,638 202,378,669 11,120 51,927,277 8,638 203,191,436 Great Salt Lake South Arm 4,785 40,122,668 3,039 157,000,000 4,785 40,000,000 3,039 157,000,000 Total Indicated Resources 91,842,236 359,378,669 91,927,277 360,191,436 Measured + Indicated Resources Great Salt Lake North Arm 11,120 51,719,568 8,638 202,378,669 11,120 51,927,277 8,638 203,191,436 Great Salt Lake South Arm 4,785 40,122,668 3,039 157,000,000 4,785 40,000,000 3,039 157,000,000 Total Measured + Indicated Resources 91,842,236 359,378,669 91,927,277 360,191,436 Inferred Resources Total Inferred Resources — — — — — — — — (1) Mineral resources are not mineral reserves and do not have demonstrated economic viability.
(2) Production rates for SOP are 325,000 tons per year. This relates to a depletion of 145,833 tons of potassium per year. Based on the QP’s reserve model, the life of mine is estimated to be 139 years. (3) Conversion of potassium to SOP uses a factor of 2.2258 tons of SOP per ton of potassium.
(2) Annual production rates for SOP are assumed to be 320,000 tons per year, relating to a depletion of 145,833 tons of potassium per year. Based on the QP’s reserve model, the life of mine is estimated to be 138 years. (3) Conversion of potassium to SOP uses a factor of 2.2258 tons of SOP per ton of potassium.
(3) Conversion of magnesium to magnesium chloride uses a factor of 3.913 tons of magnesium chloride per ton of magnesium. (4) Included process recovery is approximately 10.0% based on historical production results. Mining or metallurgical recovery is not applicable for this operation. (5) Based on pricing data described in Section 18.1 of this TRS.
(3) Conversion of magnesium to magnesium chloride uses a factor of 3.913 tons of magnesium chloride per ton of magnesium. (4) Included process recovery is approximately 10.0% based on historical production results. Mining or metallurgical recovery is not applicable for this operation.
The pricing data is based on a five-year average (2017 through 2021) of historical gross sales data for sodium chloride of $62.41 per ton. Gross sales prices are projected to increase to approximately $215.66 per ton for sodium chloride through year 2161 (the current expected end of mine life).
(5) The pricing data is based on a five-year average (2019 through 2023) of historical gross sales data for sodium chloride of $82.65 per ton. Gross sales prices are projected to increase to approximately $215.66 per ton for sodium chloride through year 2161 (the current expected end of mine life).
Sales prices are projected to increase to approximately $295.60 per ton for rock salt for road deicing through year 2094 (the current expected end of mine life). (9) Based on an area of approximately 575,257,000 square feet for the A-2 salt bed within the lease area.
Sales prices are projected to increase to approximately $295.60 per ton for rock salt for road deicing through year 2094 (the current expected end of mine life). (9) Based on an area of approximately 575,257,000 square feet for the A-2 salt bed within the lease area. 59 2023 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC.
Mine Sales Revenue Per Ton” for each calendar 50 2022 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC. year is the quotient of the total bulk sales revenue (excluding any taxes) of the Company and its affiliates for salt sold from the Cote Blanche mine in bulk (in units of 1 short ton or more) (“Total Bulk Sales Revenue”) reduced for all freight in, freight out, fuel surcharge, additives, depot/warehouse storage, handling and operating costs, promotions/discounts and other costs as are properly deducted under generally accepted accounting principles in that calendar year, divided by the total number of tons sold.
(excluding any taxes) of the Company and its affiliates for salt sold from the Cote Blanche mine in bulk (in units of 1 short ton or more) (“Total Bulk Sales Revenue”) reduced for all freight in, freight out, fuel surcharge, additives, depot/warehouse storage, handling and operating costs, promotions/discounts and other costs as are properly deducted under generally accepted accounting principles in that calendar year, divided by the total number of tons sold.
The Company’s experience in extracting potassium and other salts from the Great Salt Lake for over 50 years under dynamic conditions, such as changing lake elevations and ion concentrations, lends confidence regarding the ability to operate under varying conditions, utilizing ion concentrations as a tool to monitor reserve estimates and make operational decisions.
The Company’s experience in extracting potassium and other salts from the Great Salt Lake for over 50 years under dynamic conditions, such as changing lake elevations and ion concentrations, lends confidence regarding the ability to operate under varying conditions, utilizing ion concentrations as a tool to monitor reserve estimates and make operational decisions. 60 2023 FORM 10-K Table of Contents COMPASS MINERALS INTERNATIONAL, INC.
Ogden Facility – Summary of Sodium and Sodium Chloride Mineral Resources at September 30, 2022 and 2021 September 30, 2022 September 30, 2021 Resource Area Average Sodium Grade (mg/L) (7) Sodium Resources (tons) (1)(2)(4)(5) Cut-Off Grade (mg/L) (6) Sodium Chloride Resources (tons) (1)(2)(3)(4)(5) Average Sodium Grade (mg/L) (7) Sodium Resources (tons) (1)(2)(4)(5) Cut-Off Grade (mg/L) (6) Sodium Chloride Resources (tons) (1)(2)(3)(4)(5) Measured Resources Total Measured Resources — — — — — — — — Indicated Resources Great Salt Lake North Arm 97,530 436,477,305 75,757 1,109,525,310 97,530 437,000,000 75,757 1,111,000,000 Great Salt Lake South Arm 46,298 406,000,000 40,365 1,032,000,000 46,298 406,000,000 40,365 1,032,000,000 Total Indicated Resources 842,477,305 2,141,525,310 843,000,000 2,143,000,000 Measured + Indicated Resources Great Salt Lake North Arm 97,530 436,477,305 75,757 1,109,525,310 97,530 437,000,000 75,757 1,111,000,000 Great Salt Lake South Arm 46,298 406,000,000 40,365 1,032,000,000 46,298 406,000,000 40,365 1,032,000,000 Total Measured + Indicated Resources 842,477,305 2,141,525,310 843,000,000 2,143,000,000 Inferred Resources Total Inferred Resources — — — — — — — — (1) Mineral resources are not mineral reserves and do not have demonstrated economic viability.
Ogden Facility – Summary of Sodium and Sodium Chloride Mineral Resources at September 30, 2023 and 2022 September 30, 2023 September 30, 2022 Resource Area Average Sodium Grade (mg/L) (7) Sodium Resources (tons) (1)(2)(4)(5) Cut-Off Grade (mg/L) (6) Sodium Chloride Resources (tons) (1)(2)(3)(4)(5) Average Sodium Grade (mg/L) (7) Sodium Resources (tons) (1)(2)(4)(5) Cut-Off Grade (mg/L) (6) Sodium Chloride Resources (tons) (1)(2)(3)(4)(5) Measured Resources Total Measured Resources — — — — — — — — Indicated Resources Great Salt Lake North Arm 97,530 435,962,634 75,757 1,108,217,016 97,530 436,477,305 75,757 1,109,525,310 Great Salt Lake South Arm 46,298 405,979,544 40,365 1,032,000,000 46,298 406,000,000 40,365 1,032,000,000 Total Indicated Resources 841,942,178 2,140,217,016 842,477,305 2,141,525,310 Measured + Indicated Resources Great Salt Lake North Arm 97,530 435,962,634 75,757 1,108,217,016 97,530 436,477,305 75,757 1,109,525,310 Great Salt Lake South Arm 46,298 405,979,544 40,365 1,032,000,000 46,298 406,000,000 40,365 1,032,000,000 Total Measured + Indicated Resources 841,942,178 2,140,217,016 842,477,305 2,141,525,310 Inferred Resources Total Inferred Resources — — — — — — — — (1) Mineral resources are not mineral reserves and do not have demonstrated economic viability.