Pakistan International Airlines Corporation invites sealed bids for the collection and removal of airline refuse and throw-away material from various PIA locations at International Airport Sialkot. The contract is for one year with possible extension for two further terms. The vendor will be responsible for daily collection, cleaning, and proper disposal of garbage including food waste, disposable bags, cardboard boxes, and other refuse from PIA premises. The service includes round-the-clock collection from PIA Flight Kitchen, Engineering, Apron, Cargo, and other premises. The contractor must ensure cleanliness after collection and staff identification by uniform and badge. The contract requires compliance with safety and environmental guidelines approved by the Civil Aviation Authority.