Biggest changeProven and Probable Reserves (1)(2) Tons (000s) Proven Reserves (1)(2) Tons (000s) Probable Reserves (1)(2) Tons (000s) Conversion Factor (%) Owned Unpatented (3) Leased Limestone Adams, MA 6,483 913 56 % 7,396 — — Canaan, CT 14,287 4,288 97 % 18,575 — — Lucerne Valley, CA 26,420 7,399 95 % 33,819 — — Pima County, AZ 6,327 — 90 % — 6,327 — Total Limestone 53,517 12,600 59,790 6,327 — 90 % 10 % 0 % Sodium Bentonite Australia — 952 80 % — — 952 Belle/Colony, WY/SD 28,856 24,369 77 % 3,399 11,869 37,957 Lovell, WY 29,968 4,217 87 % 14,988 15,023 4,174 Other SD, WY, MT 43,117 29,714 77 % 54,815 15,048 2,968 Total Sodium Bentonite 101,941 59,252 73,202 41,940 46,051 45 % 26 % 29 % Calcium Bentonite Chao Yang, Liaoning, China 140 379 78 % — — 519 Nevada — 1,054 75 % 1,010 44 — Sandy Ridge, AL 4,292 2,009 75 % 1,839 — 4,462 Slovakia, Lutila 947 1,702 84 % — — 2,649 Turkey, Enez 581 1,745 78 % — — 2,326 Turkey, Usak 801 962 43 % — — 1,763 Turkey, Unye — 4,843 80 % — — 4,843 Total Calcium Bentonite 6,761 12,694 2,849 44 16,562 15 % — 85 % Leonardite Gascoyne, ND 158 2,158 67 % — 2,158 158 0 % 93 % 7 % Chromite South Africa 2,113 1,001 75 % — — 3,114 0 % 0 % 100 % GRAND TOTALS 164,490 87,705 135,841 50,469 65,885 54 % 20 % 26 % (1) Certain definitions: The term “mineral reserve” represents an estimate of tonnage and grade or quality of indicated and measured mineral resources that can be the basis of an economically viable project.
Biggest changeProven and Probable Reserves (1)(2) (000s) Proven Probable Reserves (1)(2) Reserves (1)(2) Conversion Tons (000s) Tons (000s) Factor (%) Owned Unpatented (3) Leased Limestone Adams, MA 5,778 794 52% 6,572 - - Canaan, CT 14,634 4,365 100% 18,999 - - Lucerne Valley, CA 25,808 7,133 96% 32,941 - - Pima County, AZ 6,226 - 90% - 6,226 - Total Limestone 52,446 12,292 58,512 6,226 - 90% 10% 0% Sodium Bentonite Australia - 943 80% - - 943 Belle/Colony, WY/SD 27,832 24,586 77% 3,261 11,599 37,558 Lovell, WY 29,722 4,217 87% 14,809 15,004 4,126 Other SD, WY, MT 43,117 29,714 77% 54,815 15,048 2,968 Total Sodium Bentonite 100,671 59,460 72,885 41,651 45,595 46% 26% 28% Calcium Bentonite Chao Yang, Liaoning, China 26 374 78% - - 400 Nevada - 1,053 70% 1,009 44 - Sandy Ridge, AL 4,221 2,009 75% 1,839 - 4,391 Slovakia, Lutila 898 1,702 84% - - 2,600 Turkey, Enez 538 2,205 78% - - 2,743 Turkey, Uşak 754 962 43% - - 1,716 Turkey, Ünye - 4,671 80% - - 4,671 Total Calcium Bentonite 6,437 12,976 2,848 44 16,521 15% 0% 85% Leonardite Gascoyne, ND 134 2,157 67% - - 2,291 0% 0% 100% GRAND TOTALS 159,688 86,885 134,245 47,921 64,407 55% 19% 26% (1) Certain definitions: The term “mineral reserve” represents an estimate of tonnage and grade or quality of indicated and measured mineral resources that can be the basis of an economically viable project.
The term “inferred resource” indicates a mineral resource for which quantity and grade or quality are estimated based on limited geological evidence and sampling. (2) Mineral resources estimates were calculated and prepared by the Company’s in-house technical staff. (3) Quantity of resources that would be owned if patent was granted.
The term “inferred resource” indicates a mineral resource for which quantity and grade or quality are estimated based on limited geological evidence and sampling. (2) Mineral resource estimates were calculated and prepared by the Company’s in-house technical staff. (3) Quantity of resources that would be owned if patent was granted.
The Company believes that its facilities, which are of varying ages and are of different construction types, have been satisfactorily maintained, are in good condition, are suitable for the Company’s operations and generally provide sufficient capacity to meet the Company’s production requirements.
The Company believes that its facilities, which are of varying ages and different construction types, have been satisfactorily maintained, are in good condition, are suitable for the Company’s operations, and generally provide sufficient capacity to meet the Company’s production requirements.
One facility produces powder and granular bentonite products; the other facility produces geosynthetic clay liners and other environmental products. Both facilities have direct access to rail. The Lovell processing facility is supported by bentonite clay supplied from 34 million tons of proven and probable reserves, comprised of leases (12%), unpatented claims (44%), and owned properties (44%).
One facility produces powder and granular bentonite products; the other facility produces geosynthetic clay liners and other environmental products. Both facilities have direct access to rail. 22 The Lovell processing facility is supported by bentonite clay supplied from 34 million tons of proven and probable reserves, comprised of leases (12%), unpatented claims (44%), and owned properties (44%).
A wet-processing facility is located near Belle Fourche, SD. All three facilities have direct access to rail. 26 Lovell, Wyoming Mines The Company’s Lovell, WY mining operations are located in the Bighorn Basin near Lovell, WY with processing facilities located 3 miles East of the town of Lovell.
A wet-processing facility is located near Belle Fourche, SD. All three facilities have direct access to rail. Lovell, Wyoming Mines The Company’s Lovell, WY mining operations are located in the Bighorn Basin near Lovell, WY with processing facilities located 3 miles east of the town of Lovell.
The bentonite clay in the region is predominantly of the calcium type and is converted to sodium bentonite to produce the majority of products. The Dongming mines consist of 16 small mining areas under 4 mining permits covering approximately 1,200 acres controlled by the Company.
The bentonite clay in the region is predominantly of the calcium type and is converted to sodium bentonite to produce the majority of products. 23 The Dongming mines consist of 16 small mining areas under 4 mining permits covering approximately 1,200 acres controlled by the Company.
Lucerne Valley, California Mines The Company’s Lucerne Valley operation consists of three high-purity, calcium carbonate surface mining leases, a processing and packaging facility, and supporting infrastructure within 7,347 acres in the town of Lucerne Valley in San Bernardino County, California. Calcium carbonate mining onsite stretches back to the early 1950’s.
Lucerne Valley, California Mines The Company’s Lucerne Valley operation consists of three high-purity, calcium carbonate surface mining leases, a processing and packaging facility, and supporting infrastructure within 7,347 acres in the town of Lucerne Valley in San Bernardino County, California. Calcium carbonate mining onsite stretches back to the early 1950s.
In most cases, supply from 3 rd -party mines is directly supervised by local Company staff which assists with grading and quality control. All mines are operated by contractors with conventional open-pit truck & shovel mining methods. Clay from the mines is hauled by trucks to the Company’s processing facility.
In most cases, supply from third -party mines is directly supervised by local Company staff, which assists with grading and quality control. All mines are operated by contractors with conventional open-pit truck-and-shovel mining methods. Clay from the mines is hauled by trucks to the Company’s processing facility.
(2) Mineral reserves estimates were calculated and prepared by the Company’s in-house technical staff. (3) Quantity of reserves that would be owned if patent was granted. 30 Measured, Indicated and Inferred Resources The following table sets forth the Company’s measured, indicated and inferred resources by major minerals category at December 31, 2024.
(2) Mineral reserves estimates were calculated and prepared by the Company’s in-house technical staff. (3) Quantity of reserves that would be owned if patent was granted. 26 Measured, Indicated and Inferred Resources The following table sets forth the Company’s measured, indicated, and inferred resources by major minerals category at December 31, 2025.
All of the properties on which our reserves are located are either physically accessible for the purposes of mining and hauling or the cost of obtaining physical access would not be material. Access to processing facilities from the mining areas is generally by private road, public highways, or railroads.
All of the properties on which our reserves are located are either physically accessible for the purposes of mining and hauling or the cost of obtaining physical access would not be material. Access to processing facilities from the mining areas is generally by private road, public highway, or railroad.
See Note 17 to the consolidated financial statements. 29 Proven and Probable Reserves The following table sets forth the Company’s proven and probable reserves, as well as, the conversion factor for the conversion of in-situ materials to saleable products by major minerals category at December 31, 2024.
See Note 17 to the Consolidated Financial Statements. 25 Proven and Probable Reserves The following table sets forth the Company’s proven and probable reserves, as well as the conversion factor for the conversion of in-situ materials to saleable products by major minerals category at December 31, 2025.
Assuming the continuation of 2024 annualized usage rates, the Company has reserves of commercially usable sodium bentonite in excess of 50 years, commercially usable calcium bentonite for the next 15 years and commercially usable leonardite for more than 50 years. At current usage levels, the Company has reserves in excess of 28 years at its limestone production facilities.
Assuming the continuation of 2025 annualized usage rates, the Company has reserves of commercially usable sodium bentonite in excess of 50 years, commercially usable calcium bentonite for the next 18 years, and commercially usable leonardite for more than 50 years. At current usage levels, the Company has reserves in excess of 28 years at its limestone production facilities.
The local processing facilities are supported by bentonite clay supplied from 53 million tons of proven and probable reserves, comprised of leases (71%), unpatented claims (22%), and owned properties (7%). The area operates under 12 mining permits covering approximately 100,000 acres, with active mining and future mineral reserves located within 35 miles of the Colony processing facilities.
The local processing facilities are supported by bentonite clay supplied from 52 million tons of proven and probable reserves, comprised of leases (72%), unpatented claims (22%), and owned properties (6%). The area operates under 12 mining permits covering approximately 100,000 acres, with active mining and future mineral reserves located within 35 miles of the Colony processing facilities.
The Company also owns mineral deposits that it is not currently mining, including deposits of bentonite in Nevada and chromite in South Africa, and leases its limestone mine in Pima, Arizona to a third party. 25 Below is a map of our significant mines globally.
The Company also owns mineral deposits that it is not currently mining, including deposits of bentonite in Nevada, and leases its limestone mine in Pima, Arizona to a third party. 21 Below is a map of our significant mines globally.
Rights to the bentonite are leased from the Chinese government and separate agreements are made with land owners for surface access and mining. Much of the bentonite supplied to the Dongming processing facility is from 3 rd -party mines, with Company-controlled mines used to supplement supply and as strategic backup reserves.
Rights to the bentonite are leased from the Chinese government and separate agreements are made with landowners for surface access and mining. Much of the bentonite supplied to the Dongming processing facility is from third -party mines, with Company-controlled mines used to supplement supply and as strategic backup reserves.
These mines are operated by the Company via contract mining and hauling. Both mines use conventional open-pit truck & shovel mining methods. The properties are comprised of both government-issued mining claims and privately-owned lands. The orebodies were produced by hydrothermal alteration and generally occur as massive deposits greater than 10 meters in thickness.
These mines are operated by the Company via contract mining and hauling. Both mines use conventional open-pit truck-and-shovel mining methods. The properties are comprised of both government-issued mining claims and privately-owned lands. The orebodies were produced by hydrothermal alteration and generally occur as massive deposits greater than 10 meters in thickness. The bentonite ore is notable for its high brightness.
These assumptions relate to consistency of deposits in relation to drilling samples obtained with respect to both quantity and quality of reserves contained therein; the ratio of overburden to mineral deposits; any environmental or social impact of mining the minerals; and profitability of extracting those minerals, including haul distance to processing plants, applicability of minerals to various end markets and selling prices within those markets, and our past experiences in the deposits, several of which we have been operating in for many decades. 31 The Company maintains a Mining Lead Team that develops standards and systems to ensure Company-wide use of best practices for mining and exploration.
These assumptions relate to consistency of deposits in relation to drilling samples obtained with respect to both quantity and quality of reserves contained therein; the ratio of overburden to mineral deposits; any environmental or social impact of mining the minerals; and profitability of extracting those minerals, including haul distance to processing plants, applicability of minerals to various end markets and selling prices within those markets, and our past experiences in the deposits, several of which we have been operating in for many decades.
The bentonite deposits underlying these claims and leases generally lie in parcels of land varying between 20 and 40 acres. In general, our bentonite reserves are immediately adjacent to, or within sixty miles of, one of the related processing plants.
A majority of these are with private parties and located in South Dakota, Montana, and Wyoming. The bentonite deposits underlying these claims and leases generally lie in parcels of land varying between 20 and 40 acres. In general, our bentonite reserves are immediately adjacent to, or within sixty miles of, one of the related processing plants.
The Mining Lead Team ensures that the Company maintains robust controls over its exploration and resource and reserve estimation efforts. In particular, because the Company has a long history of operations at its mining operations, the Company is able to continuously validate its resource and reserve estimates by reference to actual production from each mine.
In particular, because the Company has a long history of operations at its mining operations, the Company is able to continuously validate its resource and reserve estimates by reference to actual production from each mine.
All mineral rights are owned by the Company. 28 Operating Statistics The following table sets forth the tons usage for the fiscal years 2024, 2023 and 2022 by major mineral category. 2024 2023 2022 Tons (000s) Tons (000s) Tons (000s) Limestone Adams, MA 298 401 315 Canaan, CT 674 641 562 Lucerne Valley, CA 1,262 1,267 1,202 Pima County, AZ 101 101 114 Total Limestone 2,335 2,410 2,193 Sodium Bentonite Australia 61 39 69 Belle/Colony, WY/SD 1,540 1,253 1,109 Lovell, WY 760 681 629 Total Sodium Bentonite 2,361 1,973 1,807 Calcium Bentonite Chao Yang, Liaoning, China 461 278 267 Nevada 1 1 1 Sandy Ridge, AL 104 96 98 Slovakia, Lutila 74 65 52 Turkey, Enez 188 168 172 Turkey, Usak 70 60 62 Turkey, Unye 386 368 331 Total Calcium Bentonite 1,284 1,036 983 Leonardite Gascoyne, ND 41 75 31 GRAND TOTALS (1) 6,021 5,494 5,014 (1) The Company also has mined, beneficiated and processed talc through its BMI Oldco Inc.
All mineral rights are owned by the Company. 24 Operating Statistics The following table sets forth the tons usage for the fiscal years 2025, 2024, and 2023 by major mineral category. 2025 2024 2023 Limestone Tons (000s) Tons (000s) Tons (000s) Adams, MA 363 298 401 Canaan, CT 669 674 641 Lucerne Valley, CA 1,219 1,262 1,267 Pima County, AZ 101 101 101 Total Limestone 2,352 2,335 2,410 Sodium Bentonite Australia 34 61 39 Belle/Colony, WY/SD 1,034 1,540 1,253 Lovell, WY 531 760 681 Total Sodium Bentonite 1,599 2,361 1,973 Calcium Bentonite Chao Yang, Liaoning, China 483 461 278 Nevada 1 1 1 Sandy Ridge, AL 71 104 96 Slovakia, Lutila 49 74 65 Turkey, Enez 235 188 168 Turkey, Uşak 72 70 60 Turkey, Ünye 173 386 368 Total Calcium Bentonite 1,084 1,284 1,036 Leonardite Gascoyne, ND 24 41 75 GRAND TOTALS (1) 5,059 6,021 5,494 (1) The Company also has mined, beneficiated, and processed talc through its BMI Oldco Inc.
The regional bentonite occurs within the Jurassic Jingangshan and Tuhulu formations which were deposited during the Upper Jurassic Period between 135 to 144 million years ago. The thickness of the bentonite layers varies from 0.5 to 40m.
Dongming, China Mines The Company’s Dongming mines and processing facilities are located in Jianping County, Liaoning Province, China. The regional bentonite occurs within the Jurassic Jingangshan and Tuhulu formations, which were deposited during the Upper Jurassic Period between 135 to 144 million years ago. The thickness of the bentonite layers varies from 0.5 to 40m.
The Company has reserves of sodium and calcium bentonite at various locations in the U.S., including Wyoming, Montana, South Dakota, Nevada and Alabama, as well as in Australia, China, Slovakia and Turkey. Through the Company’s affiliations and joint ventures, the Company also has access to bentonite deposits in India and Mexico.
The Company relies on access to bentonite reserves to support our businesses. The Company has reserves of sodium and calcium bentonite at various locations in the U.S., including Wyoming, Montana, South Dakota, Nevada, and Alabama, as well as in Australia, China, Slovakia, and Turkey.
A back-cast method of mining is used whereby small pits are progressively opened and then quickly backfilled in succession as mining progresses along outcrops. Most pits are reclaimed in the same year that they were first disturbed.
A back-cast method of mining is used whereby small pits are progressively opened and then quickly backfilled in succession as mining progresses along outcrops. Most pits are reclaimed in the same year that they were first disturbed. Annual exploration and permitting activities target the replacement of the number of tons mined to support the long-term sustainability of local operations.
The primary processing facility is located approximately 50 miles west of Chaoyang, Liaoning Province near the Dongming mines. 27 Adams, Massachusetts Mine The Company’s Adams mine and the associated processing facility is located in the town of Adams, in the Northwest corner of Massachusetts.
The primary processing facility is located approximately 50 miles west of Chaoyang, Liaoning Province near the Dongming mines. Adams, Massachusetts Mine The Company’s Adams mine and the associated processing facility is located in the town of Adams, in the Northwest corner of Massachusetts. The property consists of approximately 800 total acres, including the land on which the production facilities sit.
Total Resources (1)(2) Tons (000s) Measured Resources (1)(2) Tons (000s) Indicated Resources (1)(2) Tons (000s) Measured and Indicated (1)(2) Resources Tons (000s) Inferred (1)(2) Resources Tons (000s) Owned Unpatented (3) Leased Limestone Adams, MA 24,416 1,350 25,766 14,649 40,415 — — Canaan, CT 15,503 21,063 36,566 3,798 40,364 — — Lucerne Valley, CA 24,825 22,373 47,198 8,394 55,592 — — Pima County, AZ 7,142 — 7,142 — — 7,142 — Total Limestone 71,886 44,786 116,672 26,841 136,371 7,142 — 95 % 5 % 0 % Sodium Bentonite Australia — 1,220 1,220 — — — 1,220 Belle/Colony, WY/SD 9,407 6,902 16,309 94 556 8,137 7,710 Lovell, WY 410 57 467 2,952 1,075 2,217 127 Other SD, WY, MT 4,612 — 4,612 11,030 — 15,642 — Total Sodium Bentonite 14,429 8,179 22,608 14,076 1,631 25,996 9,057 4 % 71 % 25 % Calcium Bentonite Chao Yang, Liaoning, China — 200 200 345 — — 545 Nevada — — — — — — — Sandy Ridge, AL 195 — 195 — — — 195 Slovakia, Lutila — 4,113 4,113 1,892 — — 6,005 Turkey, Enez 350 — 350 1,192 — — 1,542 Turkey, Usak 580 229 809 2,749 — — 3,558 Turkey, Unye — 1,320 1,320 21,000 — — 22,320 Total Calcium Bentonite 1,125 5,862 6,987 27,178 — — 34,165 0 % 0 % 100 % Leonardite Gascoyne, ND 1,435 — 1,435 790 — — 2,225 0 % 0 % 100 % Chromite South Africa 800 584 1,384 7,093 — — 8,477 0 % 0 % 100 % Other Nevada — 2,997 2,997 3,031 — 6,028 — 0 % 100 % 0 % GRAND TOTALS 89,675 62,408 152,083 79,009 138,002 39,166 53,924 60 % 17 % 23 % (1) Certain definitions: The term “mineral resource” indicates a concentration or occurrence of material of economic interest in or on the Earth’s crust in such form, grade or quality, and quantity that there are reasonable prospects for economic extraction.
Total Resources (1)(2) Tons (000s) Measured and Measured Indicated Indicated (1)(2) Inferred (1)(2) Resources (1)(2) Resources (1)(2) Resources Resources Tons (000s) Tons (000s) Tons (000s) Tons (000s) Owned Unpatented (3) Leased Limestone Adams, MA 24,415 1,342 25,757 14,621 40,378 - - Canaan, CT 15,504 21,058 36,562 3,840 40,402 - - Lucerne Valley, CA 24,853 22,402 47,255 8,357 55,612 - - Pima County, AZ 7,041 - 7,041 - - 7,041 - Total Limestone 71,813 44,802 116,615 26,818 136,392 7,041 - 95% 5% 0% Sodium Bentonite Australia - 1,232 1,232 - - - 1,232 Belle/Colony, WY/SD 9,575 6,902 16,477 94 556 8,137 7,878 Lovell, WY 410 57 467 2,952 1,075 2,217 127 Other SD, WY, MT 4,612 - 4,612 11,030 - 15,642 - Total Sodium Bentonite 14,597 8,191 22,788 14,076 1,631 25,996 9,237 4% 71% 25% Calcium Bentonite Chao Yang, Liaoning, China - 1,441 1,441 3,639 - - 5,080 Nevada - - - - - - - Sandy Ridge, AL 195 - 195 - - - 195 Slovakia, Lutila - 6,964 6,964 1,893 - - 8,857 Turkey, Enez 350 - 350 1,192 - - 1,542 Turkey, Uşak 580 229 809 2,749 - - 3,558 Turkey, Ünye - 1,320 1,320 21,000 - - 22,320 Total Calcium Bentonite 1,125 9,954 11,079 30,473 - - 41,552 0% 0% 100% Leonardite Gascoyne, ND 1,435 - 1,435 790 - - 2,225 0% 0% 100% Other Nevada - 2,997 2,997 3,031 - 6,028 - 0% 100% 0% GRAND TOTALS 88,970 65,944 154,914 75,188 138,023 39,065 53,014 60% 17% 23% 27 (1) Certain definitions: The term “mineral resource” indicates a concentration or occurrence of material of economic interest in or on the Earth’s crust in such form, grade or quality, and quantity that there are reasonable prospects for economic extraction.
The Company owns or controls the properties on which the bentonite reserves are located through long-term leases, royalty agreements (including easement and right of way agreements) and patented and unpatented mining claims. No single or group of mining claims or leases is significant or material to the financial condition or operations of our Company or our segments.
Through the Company’s affiliations and joint ventures, the Company also has access to bentonite deposits in Mexico. The Company owns or controls the properties on which the bentonite reserves are located through long-term leases, royalty agreements (including easement and right of way agreements), and patented and unpatented mining claims.
The majority of our current bentonite mining in the U.S. occurs on reserves where our rights to such reserves accrue to us through over 80 mining leases and royalty agreements and 2,000 mining claims. A majority of these are with private parties and located in South Dakota, Montana and Wyoming.
No single or group of mining claims or leases is significant or material to the financial condition or operations of our Company or our segments. The majority of our current bentonite mining in the U.S. occurs on reserves where our rights to such reserves accrue to us through over 80 mining leases and royalty agreements and 2,000 mining claims.
The bentonite ore is notable for its high brightness. Ore from the mines is transported by truck to a processing facility in the town of Unye where it is stockpiled, dried, and converted to granular products. Dongming, China Mines The Company’s Dongming mines and processing facilities are located in Jianping county, Liaoning province, China.
Ore from the mines is transported by truck to a processing facility in the town of Ünye, where it is stockpiled, dried, and converted to granular products. Uşak, Turkey Mines The Company’s Uşak-area mines are located southwest of the town of Uşak, Turkey, in the eastern Aegean region.
The property consists of approximately 800 total acres, including the land on which the production facilities sit. Production of lime began on the site back in the 1850s and continues today with GCC, Lime and PCC. The open-pit mine consists mainly of a mineral deposit of limestone (marble).
Production of lime began on the site in the 1850s and continues today with GCC, lime, and PCC. The open pit mine consists mainly of a mineral deposit of limestone. The deposit is part of the Shelburne geological formation, which runs up and down the eastern coast of the United States.
The resulting Ground Calcium Carbonate (GCC) is primarily used by high-end, high-volume construction markets in joint compound, floor coverings, asphalt roofing shingles and glass.
The open pit mine consists mainly of dolomitic limestone. The mined dolomite is finely pulverized at the processing facility using a variety of crushing and milling equipment. The resulting Ground Calcium Carbonate (GCC) is primarily used by high-end, high-volume construction markets in joint compounds, floor coverings, asphalt roofing shingles, and glass.
A mine plan has been developed based on the prior mining activities and a core drilling program was completed in 2019. The reserves and resources are the product of this recent life-of-mine study. Canaan, Connecticut Mine The Canaan mine and the associated processing facility are located in the town of North Canaan, Connecticut and consists of approximately 208 total acres.
The deposit is wholly owned by the Company. With over 150 years of mining on site by the Company and its predecessors, the resources are well understood. A mine plan has been developed based on the prior mining activities and a core drilling program was completed in 2019. The reserves and resources are the product of this recent life-of-mine study.
The mine is situated between Canaan Mountain to the South and Lower Road to the North. The mine is located approximately 1.0 miles south of the main processing facility. The open-pit mine consists mainly of dolomitic limestone. The mined dolomite is finely pulverized at the processing facility using a variety of crushing and milling equipment.
Canaan, Connecticut Mine The Canaan mine and the associated processing facility are located in the town of North Canaan, Connecticut and consists of approximately 208 total acres. The mine is situated between Canaan Mountain to the south and Lower Road to the north. The mine is located approximately 1.0 miles south of the main processing facility.
The deposit is part of the Shelburne geological formation, which runs up and down the eastern coast of the United States. The mined material is finely pulverized at the processing facility using a variety of crushing and milling equipment and sold as ground products, calcined into lime and is also synthesized into participated crystals or PCC.
The mined material is finely pulverized at the processing facility using a variety of crushing and milling equipment. It is sold as ground products, calcined into lime, or synthesized into precipitated crystals or PCC. The resulting calcium and calcium carbonate products are primarily used as food and pharmaceutical ingredients, sealant additives, high-end construction ingredients, and asphalt roofing shingles.