Sui Northern Gas Pipelines Limited (SNGPL) 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 lowering material. Bidders must possess valid professional tax clearance certificates and be active taxpayers listed with the Federal Board of Revenue. The bidding documents containing detailed terms, conditions, specifications, and requirements are available for registered bidders on the EPADS portal. Electronic bids must be submitted on or before the specified closing date and time. Manual bids will not be accepted. The tender reference number for this enquiry is F-25121486692.