Karachi Shipyard & Engineering Works Limited invites experienced sub-contractors for specialized marine machining work in Karachi. This tender focuses on machining the locking flange for a vessel under construction, involving milling, turning, grinding, and fine polishing. The scope covers precision machining tasks critical to vessel assembly at the KS&EW shipyard. The worksite is located within Karachi, requiring expertise in marine-grade materials and adherence to strict engineering standards. The machining of the locking flange and spacing ring split demands high accuracy to ensure vessel integrity and operational safety. Bidders should ensure they meet PEC requirements relevant to marine engineering works and maintain an active FBR ATL status for the fiscal year 2025-26. It is advisable to prepare a valid Call Deposit Receipt (CDR) as Earnest Money and complete the Pre-Qualification form with proper signatures and stamps to avoid disqualification. Submission deadline is set for 11:00 AM on **22-04-2026**, with technical proposals opening at 11:30 AM the same day at the Development & Sub-Contract office, Ground Floor, Ship Planning Hall, Works Office Building, Karachi Shipyard. Financial proposals will be opened later for technically qualified bidders. Pro-Tip: Carefully review the tender documents for specific packaging instructions and ensure the two-envelope system is strictly followed to avoid rejection. Also, confirm the tender fee payment receipt is included as it is non-refundable and mandatory for document collection.