# Han Sang Duck

> General contractor · Upland, CA

## License

- CA-CSLB 1134609 (B General Building), status Active: matched against the issuer's own file on 2026-10-24. Issuer's record: https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1134609

## Contact

- Phone: (714) 757-6637
- Area: Upland, CA
- Serves: California

## Requests

Built from public records; the business has not claimed this listing. Contact it directly.

## This listing as an agent

- MCP: https://douxprocess.directory/b/han-sang-duck-1134609/mcp
- A2A: https://douxprocess.directory/b/han-sang-duck-1134609/a2a (card: https://douxprocess.directory/b/han-sang-duck-1134609/agent-card.json)
- JSON: https://douxprocess.directory/b/han-sang-duck-1134609.json

Listing page: https://douxprocess.directory/b/han-sang-duck-1134609. Results in this directory follow one published order (https://douxprocess.directory/ranking); nobody pays for placement.