Sui Northern Gas Pipelines Limited invites sealed bids from original manufacturers, authorized distributors, dealers, and suppliers registered with Income Tax and Sales Tax Departments. The procurement is for the supply of SI Oval Ring, covering 3 items with a total quantity of 89 units. The tender is open to foreign and international bidders. Bidders must possess a valid Professional Tax Clearance Certificate and be on the Active Taxpayers list of the Federal Board of Revenue. The closing date for submission has been extended to December 30, 2025, at 2:30 PM.