EXTREME MATERIALS INC
DBA KNIGHTS TRUCKING · Summerville, SC · MC 699110
From CarrierTrail’s copy of the FMCSA census, published Sep 30, 2026. Record present in this snapshot. Official record: SAFER · Motus
1 note
- Phone number shared with 4 other census records
Observations from public fields, not findings about the company. Check the official record and the context before deciding.
Company identity and reported operations
| USDOT number | 1905971 |
|---|---|
| Legal name | EXTREME MATERIALS INC |
| Doing business as / DBA | KNIGHTS TRUCKING |
| MC docket identifiers | MC 699110 |
| Reported physical address | 480 HODGE ROAD, SUMMERVILLE, SC, 29483, US |
| Reported business phone | (843) 821-7600 |
| Reported power units | 38 |
| Reported drivers | 38 |
| Reported MCS-150 date | Feb 10, 2025 |
| Company officers (as filed) | Thad Wharton, Michael B Knight |
| Carrier operation | Interstate |
| Census status code | A |
| Safety rating | Not reported |
| Safety rating date | Not reported |
Public inspection, violation and crash summary
FMCSA public SMS input records from 2024-08-28 through 2026-08-27.
| Inspections | 98 |
|---|---|
| Driver out-of-service rate | 0.0% (0 of 98) |
| Vehicle out-of-service rate | 46.7% (7 of 15) |
| Violations | 43 across 18 inspections |
| Out-of-service violations | 10 |
| Crashes | 2 |
| Fatal / injury / tow-away crashes | 0 / 1 / 2 |
| Fatalities / injuries reported | 0 / 1 |
Most frequent published violation codes
39378AWSWashers - Inoperative washing system.539375A3TAOLTires - All others leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS43922SLLLRState/Local Laws - Lane restriction violation339360DWindshield / Windows - Tinting permits less than 70% of light transmittance33922SLLTCDState/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g. safety official signal sign light lane marking other2
Crash involvement does not establish fault. Inspection summaries, safety ratings and restricted BASIC measures are different concepts.
Compare the reported Summerville record
EXTREME MATERIALS INC reports 38 power units. The Summerville, South Carolina directory contains 1,593 census records, of which 1,264 report at least one power unit.
Reported cargo and business classification
EXTREME MATERIALS INC reports AUTHORIZED FOR HIRE in the census and lists 4 cargo categories.
- General freight
- Building materials
- Construction
- Other: SAND, ROCK, CEMENT,
Fleet size in local context
| Power units | Records | Share of all city records |
|---|---|---|
| 0 | 329 | 20.7% |
| 1 | 868 | 54.5% |
| 2–5 | 313 | 19.6% |
| 6–20 | 65 | 4.1% |
| 21–100: this carrier’s band | 13 | 0.8% |
| Over 100 | 5 | 0.3% |
| Unknown / other | 0 | 0.0% |
Record dates and observed changes
- Added to the census (not company founding date)
- Jun 23, 2009
- Carrier-reported MCS-150 filing date
- Feb 10, 2025
- Census source publication
- Sep 30, 2026 10:52 UTC
- First observed by CarrierTrail
- Sep 12, 2026 19:56 UTC
Source publication, carrier filing and our observation dates describe different events. An older filing date alone does not establish noncompliance.
Public-field differences from up to ten recent census change events are shown below.
No public-field changes are recorded in our observation window for this carrier. This does not mean the carrier never changed its details; tracking begins at the first observation shown above.
Authority and insurance
Authority filings
| Docket | Reported authority type | Reported status | BIPD required | BIPD on file |
|---|---|---|---|---|
| MC699110 | Motor Carrier of Property (Except Household Goods) | Active | $750,000 | $1,000,000 |
Insurance filings
| Docket | Insurer | Coverage | Effective date | Form | Policy |
|---|---|---|---|---|---|
| MC699110 | ZURICH AMERICAN INSURANCE COMPANY | $1,000,000 | Mar 01, 2017 | BMC-91X | BAP 0081053 |
Sources and check dates
Checked Oct 01, 2026 16:21 UTC.
- Authority filings source · Published Oct 01, 2026 10:54 UTC.
- Insurance filings source · Published Oct 01, 2026 10:53 UTC.
Missing matches do not establish missing authority or insurance. Filing records are shown as published; check current status before booking.
Shared contact details
How many other records in the current FMCSA census report the same phone number or the same physical address as USDOT 1905971. Companies share offices, agents and phone lines for ordinary reasons; a match is context to check, not a finding.
Explore these reported cargo categories
General freightBuilding materials
Compare declared categories across states.
Check the official record
Monitor this carrier after your review
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