Sui Northern Gas Pipelines Limited (SNGPL) invites sealed bids from original manufacturers, authorized distributors, dealers, and suppliers registered with Income Tax and Sales Tax Departments for the supply of 254,000 Kgs of Calcined Petroleum Coke. The procurement is intended to be sourced from foreign bidders due to the nature of the requirement. Bidders must possess valid Professional Tax Clearance Certificates and be active taxpayers listed with the Federal Board of Revenue. The tender process includes submission of earnest money as per documents and a bid validity period of 90 days.