EXTREME MATERIALS INC
USDOT 1905971 · Doing business as KNIGHTS TRUCKING
Active, interstate carrier, mid-size fleet (38 power units) — no FMCSA safety rating on record (common).
Vetting summary
At a glance
- Insurance on fileZurich American Insurance Company
- Out-of-service rate7.1% vs 19.1% national avg
- Crashes (24 months)3 reported — involvement does not imply fault
- Linked registrations1 share this carrier's phone or address
These signals summarize the records shown below — they are a starting point for your own checks, not a judgment of the carrier.
Registration
Carrier identity
| USDOT Number | 1905971 |
|---|---|
| MC Number | MC-699110 |
| Legal Name | EXTREME MATERIALS INC |
| DBA Name | KNIGHTS TRUCKING |
| Entity Type | — |
| Phone | 8438217600 |
| Address | 480 HODGE ROAD, Summerville, SC, 29483 |
Status
Authority & safety
| Operating Status | Active |
|---|---|
| Operation Type | Interstate |
| Safety Rating | None on record — most carriers have not received a formal FMCSA safety rating. |
| Hazmat Flag | false |
Safety ratings: S = Satisfactory, C = Conditional, U = Unsatisfactory. A carrier with no rating has not been through a full FMCSA compliance review — this is common and not itself a red flag.
Filings
Insurance
| Current Insurer | Zurich American Insurance Company |
|---|---|
| Coverage on File | $1,000,000 |
| Insurance on File Since | 2017-03-01 |
| Insurer | Coverage | Form | Effective | Cancelled |
|---|---|---|---|---|
| Zurich American Insurance Company | $1,000,000 | BMC-91X | 2017-03-01 | — |
Our scoring
Safety scores
| Unsafe Driving | 79 / 100 |
|---|---|
| Hours-of-Service Compliance | 0 / 100 |
| Driver Fitness | 0 / 100 |
| Controlled Substances & Alcohol | 0 / 100 |
| Vehicle Maintenance | 84 / 100 |
Scores are 0-100 rankings computed by us from public FMCSA inspection measures; higher = worse relative to peers. Not official CSA/BASIC percentiles. How these scores are computed.
Safety events
Inspections & crashes (last 24 months)
| Inspections | 99 |
|---|---|
| Out-of-Service Rate | 7.1% vs 19.1% national average |
| Crashes | 3 total (0 fatal, 1 with injuries, 3 towaway) |
- 2026-02-06 — SC — 1 injured, towaway
- 2025-06-26 — SC — towaway
- 2024-08-19 — SC — towaway
- 2023-10-19 — GA — towaway
Most frequent violation categories: 47 (60), 16 (13), 51 (13).
Crash involvement does not imply fault. FMCSA crash records list all reportable crashes involving a carrier, regardless of who caused them.
Signals
Linked registrations
1 other active carrier registration share this carrier's phone or address in FMCSA records.
Shared contact details can have many ordinary explanations, such as a shared dispatch service, registration agent, or office address.
Equipment
Fleet & operations
| Power Units (trucks) | 38 |
|---|---|
| Drivers | 38 |
| Recent Annual Mileage | 2,143,000 |
| Last MCS-150 Filing | 10-FEB-25 |
EXTREME MATERIALS INC operates 38 power units — a larger fleet than 99% of carriers registered in SC.
Nearby
Other carriers in Summerville, SC
- READS MOVING SYSTEMS OF CAROLINA INC — USDOT 2021301, 28 power units
- ARBORGEN INC — USDOT 1709572, 11 power units
- MANNING AND SONS TRUCKING & UTILITIES LLC — USDOT 1926033, 8 power units
- KLM ENVIRONMENTAL LLC — USDOT 1705279, 6 power units
- JULIE LONDERGAN — USDOT 1669073, 5 power units
Browse all carriers in Summerville, SC or all SC carriers.