This tender invites pre-qualification for supply, installation, and rehabilitation of monolith towers at PSO retail outlets in Karachi. The procurement falls under power and electrical equipment category with a focus on infrastructure enhancement. Vendors must participate through SAP Ariba portal and meet technical and financial criteria. The scope includes multiple zones with the possibility for vendors to increase zones based on improved capabilities. This is the fifth round of pre-qualification and requires a valid PEC certificate in Category C6. Participation fee is non-refundable and documents are available via SAP Ariba. PQ document collection and submission are strictly through SAP Ariba with deadlines on 7th and 9th January 2026 respectively. Interested vendors must register on the Ariba network and monitor PSO and PPRA websites for updates. The tender is managed by Pakistan State Oil Company Limited, Karachi.