Sui Southern Gas Company Limited seeks a third party contractor for HSE and QA/QC inspection of a rehabilitation scheme at Nawabshah City Karachi. The contract involves inspection and quality assurance of gas distribution network rehabilitation. The scope includes inspection of construction activities, compliance with safety and quality protocols, and validation of materials and workmanship for laying underground gas pipelines and service connections. The contractor will manage TPI personnel, coordinate with SSGC and execution teams, and ensure adherence to standards and safety at multiple locations within Nawabshah City. The contract requires valid ISO 9001:2015 certification and submission of technical and financial proposals under a sealed envelope bidding procedure.