The BIS QCO for Primary Lead under IS 27:2023 sets forth new guidelines for all Tin Ingot manufacturers. Tin Ingot QCO 2025 mandates that products must conform to Indian standards and bear the ISI mark. This BIS Notification for Primary Lead will be enforced six months after its release, ensuring product quality and safety. Discover the key requirements and how your business can stay compliant with the latest regulations.