US · FMCSA ACTIVE AUTHORITY INSURED
AMERICAN COLLOID COMPANY
Belle Fourche, SD 57717 · DOT 76238 · MC1136179
Company profile
Web-discovered · as of 2026-07-30
Industrial mining and manufacturing firm specializing in bentonite clay and mineral products. Operates a private fleet (68 trucks/63 drivers) for distributing own materials from Belle Fourche, SD.
Fleet use
Private fleet
Operating scope
Regional
Service model
own account
Equipment
tanker, specialized
Ownership
Subsidiary
part of Minerals Technologies Inc.
HQ · 10881 US HWY 212, Belle Fourche, SD 57717
Active FMCSA/SAFER record and recent 2024 environmental filings in SD indicating ongoing operations.
Registry record
Source FMCSA · as of 2026-08-01
Fleet size
68
power units · corroborated
Activity
road freight carrier
for hire licence
In operation since
1974
63 drivers
US compliance
Source FMCSA L&I / SAFER · as of 2026-07-08
Operating authority
Active
Insurance on file
Yes (BIPD)
min cover $1,000k
Out of service
No
Safety rating
UNRATED
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