Sui Northern Gas Pipelines Limited invites electronic bids from original manufacturers, authorized distributors, suppliers, contractors, and service providers registered with Income Tax and Sales Tax Departments for the supply of earth filling materials. Bidders must possess a valid Professional Tax Clearance Certificate (2025-26) and be active taxpayers listed by the Federal Board of Revenue. The bidding documents containing detailed terms, conditions, specifications, and requirements are available on the EPADS portal. Electronic bids must be submitted via EPADS by the specified deadline, and manual bids will not be accepted. The tender reference for this enquiry is F-25111453109.