Yunex Sole Source

The South Carolina Department of Transportation (SCDOT) has issued a sole‑source justification to retain Yunex, LLC for a one‑year support and maintenance contract covering the proprietary PalGuide/Concert traffic‑control system. This contract ensures continuous operation of the existing ITS platform while SCDOT transitions to a new ATMS software system awarded to Parsons. The work is limited to technical support, system diagnostics, software updates, and general maintenance, with the period ending either on October 17 2027 or earlier if the new platform becomes operational. • Provide remote technical support, troubleshooting, and diagnostics for the PalGuide/Concert system. • Perform software updates and routine maintenance to keep the traffic‑control system operational. • Support period runs from October 18 2026 through October 17 2027 (or until the new ATMS platform is live). • Sole‑source justified because Yunex holds exclusive proprietary rights and knowledge of the system; no other vendor can perform the work. • Funding and cost details are not disclosed in the documents.