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This table provides a comprehensive overview of the major perlite mining operations and expanding processing plants across the United States in 2024. It identifies key companies, their operational states, and specific counties or parishes where these activities occur. This information is vital for understanding the geographic distribution and industrial capacity of the U.S. perlite sector, which supports various industries including construction, horticulture, and manufacturing. Tracking these locations and expansions helps stakeholders assess regional economic impacts, supply chain logistics, and potential growth areas within the mineral industry.
Analysis of the data reveals that perlite mining is concentrated in western states such as New Mexico, Idaho, Arizona, and Nevada, with companies like Dicalite Management Group, Inc., Imerys, S.A., and US Silica Holdings, Inc. operating multiple mines. Notably, Dicalite has mines in both Socorro and Taos counties in New Mexico, while Imerys operates mines in Arizona, New Mexico, and Oregon. The expanding plants are more widely distributed, spanning from Louisiana and Arkansas to Pennsylvania and California, indicating a broadening of processing capabilities nationwide. Significant corporate activity includes The Strong Co.’s acquisition of Ambient Minerals, Inc.’s manufacturing assets in December 2024, reflecting consolidation trends in the industry. Additionally, McDermott International Inc. underwent ownership changes with Mason Capital Management LLC acquiring CB&I. Overall, the data highlights a dynamic and geographically diverse perlite industry with ongoing investments in expansion and restructuring.
| TABLE 3 | ||||
| MAJOR PERLITE MINES AND EXPANDING PLANTS IN THE UNITED STATES IN 2024 | ||||
| Company | State | County or parish | ||
| Mines: | ||||
| Dicalite Management Group, Inc.1 | New Mexico | Socorro. | ||
| Do. | do. | Taos. | ||
| Hess Perlite | Idaho | Oneida. | ||
| Imerys, S.A. | Arizona | Pinal. | ||
| Do. | New Mexico | Taos. | ||
| Do. | Oregon | Lake. | ||
| NorCal Perlite, Inc. | California | Inyo. | ||
| US Silica Holdings, Inc. | Nevada | Churchill. | ||
| Wilkin Mining & Trucking, Inc. | do. | Lincoln. | ||
| Expanding plants:1 | ||||
| A&B Group, Inc. | Louisiana | Calcasieu. | ||
| Ambient Minerals, Inc.2 | Arkansas | Saline. | ||
| Armstrong World Industries, Inc. | Florida | Baker. | ||
| Do. | Georgia | Bibb. | ||
| Do. | Pennsylvania | Lancaster. | ||
| Aztec Perlite Co., Inc. | California | San Diego. | ||
| Carolina Perlite Co. | North Carolina | Rowan. | ||
| CertainTeed Saint-Gobain N.A. | Michigan | Baraga. | ||
| Dicalite Management Group, Inc.: | ||||
| Dicaperl Minerals LLC | Colorado | Conejos. | ||
| Do. | Indiana | Union. | ||
| Do. | Maine | Knox. | ||
| Do. | Nevada | Churchill. | ||
| Do. | New Jersey | Camden. | ||
| Do. | Oklahoma | Cleveland. | ||
| Do. | Tennessee | Davidson. | ||
| Specialty Vermiculite Corp. | Arizona | Maricopa. | ||
| Hess Perlite | Idaho | Oneida. | ||
| Hydrofarm Holdings Group, Inc. | Oregon | Lake. | ||
| Imerys, S.A. | California | San Diego. | ||
| Do. | Florida | Gadsden. | ||
| Do. | do. | Polk. | ||
| Do. | Michigan | Kalamazoo. | ||
| Do. | North Carolina | Franklin. | ||
| Do. | Texas | Harris. | ||
| Do. | Wyoming | Sweetwater. | ||
| James Hardie Building Products Inc. | Florida | Hillsborough. | ||
| Johns Manville | Georgia | Glynn. | ||
| Do. | Illinois | Will. | ||
| Knauf Performance Materials GmbH | Indiana | Martin. | ||
| Do. | Minnesota | Carlton. | ||
| Do. | Mississippi | Washington. | ||
| Do. | Ohio | Ottawa. | ||
| McDermott International, Inc.3 | Illinois | Kendall. | ||
| Midwest Perlite, Inc. | Wisconsin | Outagamie. | ||
| Nestle Purina PetCare Co. | Missouri | St. Louis. | ||
| NorCal Perlite, Inc. | California | Contra Costa. | ||
| Do. | do. | Kern. | ||
| Do. | South Carolina | Spartanburg | ||
| T Minerals | Louisiana | Orleans. | ||
| Pennsylvania Perlite Corp. | Pennsylvania | Northampton. | ||
| Perlite Vermiculite Packaging Industries, Inc. | Ohio | Trumbull. | ||
| Silbrico Corp. | Illinois | Cook. | ||
| Do. | Pennsylvania | Bucks. | ||
| The Strong Co. | Arkansas | Jefferson. | ||
| Sun Gro Horticulture Canada Ltd. | do. | Do. | ||
| Do. | Michigan | Branch. | ||
| Supreme Perlite Co. | Oregon | Multnomah. | ||
| Therm-O-Rock East, Inc. | Pennsylvania | Washington. | ||
| Therm-O-Rock West, Inc. | Arizona | Maricopa. | ||
| US Silica Holdings, Inc. | Nebraska | Washington. | ||
| Do. | Nevada | Pershing. | ||
| Whittemore Co., Inc. | Massachusetts | Essex. | ||
| Wilkin Mining & Trucking, Inc. | Nevada | Lincoln. | ||
Do., do. Ditto.
1List may not include all locations where expanded perlite is processed.
2In December 2024, The Strong Co. acquired the manufacturing assets of Ambient Minerals, Inc.
3In December 2024, Mason Capital Management LLC acquired CB&I, which was owned by McDermott International Inc.
Source: United States Geological Survey Mineral Resources Program
See also: Perlite statistics | Mineral commodity prices