Sui Northern Gas Pipelines Limited (SNGPL) invites sealed bids from original manufacturers, authorized distributors, dealers, authorized stockiest suppliers, and stockiest with valid authority letters for the supply of materials required for welding works. Participants must be registered with Income Tax and Sales Tax Departments and possess a valid Professional Tax Clearance Certificate for 2025-26. Bidding documents with detailed terms and conditions are available on the PPRA website. Bidders must submit their bids in sealed envelopes along with a bid bond in the form of a bank draft, pay order, or bond issued by a scheduled bank. Bids must reach the Procurement Department at SNGPL Project South Spread, KLP Road Near Jamal Din Wali Bypass, Sadiqabad by 12 December 2025 at 1500 hours. Bids will be publicly opened the same day at 1530 hours on EPAD.