KOR-US
Suspended: workers' compensation coverage lapsed. A contractor whose license is not clear is not legally permitted to contract for work in California until the issue is resolved.
License
- Status
- WORK COMP SUSP
- First issued
- October 5, 1988
- Expires
- October 31, 2026
- Entity
- Sole Owner
- Address of record
- 12853 CANTRECE STREET, Cerritos, CA 90701
- Phone of record
- (562) 577 5220
Contractor bond
- Surety
- MERCHANTS BONDING COMPANY (MUTUAL)
- Bond number
- 101988135
- Amount
- $25,000
- Effective
- August 31, 2026
Workers’ compensation
- Carrier
- STATE FARM FIRE AND CASUALTY COMPANY
- Policy number
- 92TAM6937
- Effective
- January 1, 2025
- Expires
- January 1, 2026
Are they licensed for your job?
A California contractor may only contract for work their classification covers. Pick the job and this reads the license on file against it.
Licensed to perform
- C-16 Fire Protection Contractor
- C-20 Warm-Air Heating, Ventilating and Air-Conditioning Contractor
- C-36 Plumbing Contractor
A contractor may only contract for work within their classifications.
People on this license
| Name | Title | Since | Through |
|---|---|---|---|
| YI CHONG SOP | Sole Owner | October 5, 1988 | Current |
| YI CHONG SOP | Sole Owner | March 22, 1989 | Current |
| YI CHONG SOP | Sole Owner | October 31, 1989 | Current |
| YI CHONG SOP | Sole Owner | December 3, 1999 | January 1, 2004 |
Verified status badge
Put this on your website or in a bid packet. It reads the state’s record live every time someone loads it, so it is never a screenshot of a good day. Free, and you don’t need to claim this listing to use it.
<a href="https://bookofbuilders.com/license/543438" target="_blank" rel="noopener">
<img src="https://bookofbuilders.com/badge/543438.svg" alt="KOR-US — California contractor license #543438 status, verified against CSLB records" width="268" height="76">
</a>The badge shows whatever the CSLB record says — including a suspension or lapsed coverage. There is no paid version and no way to change what it displays. That is what makes it worth showing. The same data as JSON if you’d rather build your own.
Is this your license?
Claim this page to add your photos, description, service area and contact details. The state’s record above stays exactly as it is — claiming adds to a page, it never edits or hides anything the CSLB reports.
Source: California Contractors State License Board public records. Coverage lapse is evaluated against today’s date; all other fields reflect the latest weekly CSLB file. Confirm at the CSLB’s official record before signing a contract.