This tender invites qualified contractors to provide specialized services for SLD Development at various Pakistan State Oil operations locations in Karachi. The department requires experienced firms with proven financial strength to participate through the SAP Ariba portal, ensuring a streamlined and transparent procurement process. The scope involves detailed development and management of Single Line Diagrams (SLD) critical for operational efficiency and safety. Contractors must be adept at handling technical complexities associated with energy sector infrastructure, ensuring compliance with industry standards and operational requirements in Karachi's dynamic environment. Bidders should ensure their PEC registration aligns with the required category and maintain active FBR/ATL status for the fiscal year 2025-26. This compliance is essential to avoid disqualification and to meet Pakistan State Oil's stringent procurement policies. Submission deadline is set for 29th January 2026 at 2:15 PM, with bid opening commencing at 3:00 PM on the same day via the SAP Ariba portal. All correspondence and document collection must be conducted online, reflecting modern procurement practices. The physical address for Pakistan State Oil is 2nd Floor, PSO House, Khayaban-e-Iqbal, Clifton, Karachi. Pro-Tip: Ensure your technical bid is comprehensive and submitted well before the deadline. Also, verify your SAP Ariba registration status early to avoid last-minute issues, as only bids submitted through this portal will be accepted.