Carrier Search
Sign inSign up
Carrier profile · USDOT 1905971 · MC699110 · Data as of Oct 7, 2026

Extreme Materials Inc

DBA Knights Trucking · Summerville, SC · Interstate for-hire carrier · Since 2009
Authority active$1M BIPD on fileNot rated by FMCSANo hazmat
Cargo carriedGeneral FreightBuilding MaterialsConstructionSand, Rock, Cement,
View on FMCSA SAFERCall (843) 821-7600
38
Power units
38
Drivers
98
Inspections · 24 mo
2
Crashes · 24 mo
2.1M
Annual miles
17 yr
Registered
79
/ 100
Review before loading

Operating legally, with 2 flags to weigh

Authority and insurance are in order. Vehicle OOS well above average: 46.7% of vehicle inspections placed out of service vs 22.26% national. Contact details shared with 3 other USDOTs: Can mean affiliates or a filing service, but also chameleon carriers.

How we scored it · 5 factors
Operating authority20/20
Insurance20/20
Out-of-service rates4/20
Crashes & rating20/20
Continuity & identity15/20

Composite of public FMCSA authority, insurance, inspection and crash records weighted against the national fleet. Decision support, not an official FMCSA safety rating.

Safety

FMCSA inspections & crashes · 24 mo · AS OF OCT 7, 2026
Vehicle out-of-service
46.7%▲ above avg
National 22.26% · 7 of 15 inspections
Driver out-of-service
0.0%▼ below avg
National 6.67% · 0 of 98 inspections
Crashes
2
0 fatal1 injury2 tow-away
Crash rate 0.47 per 1M mi
Total inspections
98
Driver inspections
98
Vehicle inspections
15
People injured
1
Fatalities
0
FMCSA rating
Not rated

Enforcement

FMCSA closed cases

Closed enforcement cases — case numbers, violation codes and the amount settled — are available after you create a free account.

Create an accountSign in

Authority & insurance

FMCSA L&I · AS OF OCT 7, 2026
Carrier
Active
Broker
None
Docket
MC699110
Revocation pending
No
Motor Carrier of Property (Except Household Goods)

Coverage vs federal minimum

BIPD liability$1,000,000
$750K required minimum (49 CFR 387.9)
CargoNot required

Filings on record

  1. Mar 1, 2017Liability (BIPD) · Zurich American Insurance Company · $1,000,000

Equipment

SELF-REPORTED ON MCS-150
38
Power units
38
Trucks
23
Tractors owned
30
Trailers owned
38
Drivers
38
CDL drivers
Not registered for hazardous materials.

Operations & cargo

FMCSA CENSUS
InterstateAuthorized for Hire
Cargo carried
General FreightBuilding MaterialsConstructionSand, Rock, Cement,
Annual mileage
2,143,000 mi (2025)

Identity & federal record

FMCSA census · MCS-150
USDOT
1905971
MC / docket
MC-699110
Legal name
Extreme Materials Inc
DBA
Knights Trucking
Entity type
Carrier
Operation
Interstate
First registered
Jun 23, 2009
Last MCS-150
Feb 10, 2025
Safety rating
Not rated
Drivers (CDL)
38 (38)
Hazmat
No
Business type
—

Fraud & network signals

For review, not a verdict.

No prior revocation
FMCSA shows no link to a previously revoked authority.
Shared phone number
Same phone number as 1 other active USDOT.
Shared email address
Same email address as 3 other active USDOTs.
Shared street address
Same street address as 1 other active USDOT.
Sharing this phone number · (843) 821-7600
Sharing this email address
Sharing this street address

Shared contact details can mean affiliated companies or a registration service, but they are also a common sign of chameleon carriers and identity theft. Confirm you're dealing with the company you expect.

Frequently asked

What is Extreme Materials Inc's USDOT number?

Extreme Materials Inc's USDOT number is 1905971 and its docket number is MC699110.

Is Extreme Materials Inc authorized to operate?

Yes. FMCSA shows active carrier operating authority.

What is Extreme Materials Inc's safety record?

Over the last 24 months: 98 roadside inspections, a 46.7% vehicle and 0.0% driver out-of-service rate, and 2 reportable crashes (0 fatal). Not rated by FMCSA.

How big is Extreme Materials Inc's fleet?

38 power units and 38 drivers per its MCS-150 filed Feb 10, 2025.

What insurance does Extreme Materials Inc carry?

$1,000,000 in BIPD liability coverage is on file with Zurich American Insurance Company.

Where is Extreme Materials Inc located?

Extreme Materials Inc is located at 480 Hodge Road, Summerville, SC, 29483. Phone: (843) 821-7600.

Similar carriers in South Carolina

All South Carolina carriers →
Pascon LLC
Lexington, SC · 38 power units
Carrier
Allwaste Services Inc
Lexington, SC · 38 power units
Carrier
RL Causey Inc
Murrells Inlet, SC · 38 power units
Carrier
Taylor Boys' Produce Inc
Enoree, SC · 38 power units
Carrier
Treadmark Logistics LLC
Simpsonville, SC · 38 power units
Carrier
Qualitative Strategies LLC
Fort Mill, SC · 38 power units
Carrier
Trucking companies in SummervilleFreight brokers in South Carolina

Source: FMCSA public records via the U.S. DOT Open Data Portal. Carrier Search presents the federal record and computed signals for decision support only. It is not an FMCSA safety rating and not a recommendation to use or avoid any carrier. Verify authority and insurance before tendering.