Manufacturing of treated clays, artificially activated with acid or other materials

404 FACILITIES

Facility	City	State	Employees	Status
Isolatek-Stanhope	Stanhope	NJ	20–99	LIKELY ACTIVE
Mansfield	Seven Fields	PA	20–99	LIKELY ACTIVE
Midlothian	Seven Fields	PA	20–99	LIKELY ACTIVE
Northdown Industires - Phoenix	Phoenix	AZ	1–19	LIKELY ACTIVE
Nucor Kingman	Seven Fields	PA	1–19	LIKELY ACTIVE
Opta Birmingham Plant	Birmingham	AL	1–19	LIKELY ACTIVE
OPTA-Cortland	Cortland	OH	1–19	LIKELY ACTIVE
OPTA East Chicago Plant	East Chicago	IN	1–19	LIKELY ACTIVE
OPTA-Warren	Warren	OH	1–19	LIKELY ACTIVE
OTK Calvert	Seven Fields	PA	20–99	LIKELY ACTIVE
Polymer Valley Chemicals	Macon	GA	20–99	LIKELY ACTIVE
Promising LLC	Lincoln	NE	—	LIKELY ACTIVE
Pueblo	Seven Fields	PA	20–99	LIKELY ACTIVE
PVP North Bloomfield	North Bloomfield	OH	20–99	LIKELY ACTIVE
Reed Minerals - Gallipolis	Chesire	OH	1–19	LIKELY ACTIVE
Reed Minerals, LLC - Houston	Houston	TX	1–19	LIKELY ACTIVE
Reed Minerals, LLC - LaCygne	La Cygne	KS	1–19	LIKELY ACTIVE
Sarver	Seven Fields	PA	20–99	LIKELY ACTIVE
SDI Pittsboro	Seven Fields	PA	20–99	LIKELY ACTIVE
Specialty Vermiculite Corp	Phoenix	AZ	1–19	LIKELY ACTIVE
SSAB Iowa	Seven Fields	PA	20–99	LIKELY ACTIVE
Steelton	Seven Fields	PA	1–19	LIKELY ACTIVE
Syrah Technologies	Vidalia, La. 70735	LA	20–99	LIKELY ACTIVE
Therm-O-Rock East, Inc.	New Eagle	PA	20–99	LIKELY ACTIVE
The Schundler Company	Nahant	MA	—	LIKELY ACTIVE

FactoryRegistry lists 404 facilities whose primary industry classification is one of the 1 industry above. This is a list by industry, not a list of makers: Census reports that establishments in these industries produced treated clays, artificially activated with acid or other materials, in the shares shown above, and does not say which establishments. Where a plant’s own website or a federal registry names what that plant makes, it appears on the plant’s own page with the source named.

The U.S. Census Bureau recorded this product line in 1 US manufacturing industry in the 2022 Economic Census, as the most specific line that industry reported, and withheld the establishment count for it.

These are counts of establishments by industry: the Economic Census publishes them as industry totals and never as a list of plants.

Part of Manufacturing of miscellaneous cyclic and acyclic chemicals and chemical products (excluding cyclic (coal tar) intermediates and fatty acid esters)

Manufacturing of glycerin, natural Manufacturing of synthetic organic medicinal chemicals (all uses), medicinal and botanical drugs, chemicals, and products, in bulk, alkaloid drugs, naturally occurring vitamins, etc., including THC and other cannabis extracts and concentrates (excluding n Manufacturing of pharmaceutical grade soybean and other vegetable oils

Industries

Stone, Glass & Concrete Manufacturers All product lines

NAPCS collection code 2025175000. Source for the product line, the establishment counts and the shares: U.S. Census Bureau, 2022 Economic Census (ECNNAPCSIND2022). Federal source data is public domain. Facility records are compiled separately by FactoryRegistry and carry their own sources.