This tender invites qualified contractors in Karachi to upgrade the low voltage motor control centers (MCC) for the chiller plant at the Utility Building, Jinnah International Airport (JIAP). The Pakistan Airports Authority (PAA) requires comprehensive dismantling of existing MCC enclosures, supply and installation of new IP-56/NEMA 4X powder-coated galvanized steel panels, and integration of control and monitoring devices including thermostats, heaters, exhaust fans, and earth leakage relays. The scope includes installation of ABB, Schneider, or equivalent electrical components such as digital ACBTPs, soft starters for condenser water pumps, primary chilled water pumps, cooling tower fans, and auxiliary starters for chiller and AHU motors. The work demands adherence to technical specifications, rigorous testing, and commissioning at the site in Karachi. Contractors must be registered with the Pakistan Engineering Council (PEC) in category C-5 or above with specialization EE-04 and hold valid NTN and ATL certificates. Bid security of PKR 1,000,000/- is mandatory. The tender follows the Public Procurement Rules 2004 and e-Pak Procurement Regulations 2023, with bids submitted electronically via EPADS and original bid security submitted physically. The contract duration is 180 days from the date of commencement. Bidders should ensure compliance with PEC categories, FBR/ATL status, and 2025-26 regulatory requirements. The bid validity period is 120 days. Submission deadline is **January 8, 2023** at 23:59:59, with bid opening 30 minutes later. Physical bid submission is recommended but not mandatory. Bids must be complete with signed documents and technical data. The office of the Sr. Joint Director (HVAC), Room #3076, Level-III, East Side, JIAP Karachi, is the physical address for bid submission. Pro-Tip: Carefully review the bid security submission requirements. Failure to submit the original bid security in a sealed envelope before bid opening will result in outright rejection. Also, verify all technical specifications and ensure all pages of bidding documents are signed and stamped to avoid disqualification.