For a new private limited company manufacturing and retailing chemicals, several licenses are crucial beyond initial GST, PAN, and TAN registrations. Depending on your specific operations, these may include a Factory License, Chemical License, Pollution Control Clearance, and potentially an Import/Export License (IEC). You'll also likely need a Trade License, Fire Safety License, and Health Trade License from local authorities. Labour law registrations like PF and ESI are required if you meet employee thresholds, alongside Professional Tax Registration. Further specific licenses could include BIS Certification, Food Safety License, Explosives License, or Drugs License if your chemicals fall into those categories. It's vital to research specific requirements and consult with experts to ensure full compliance.