An international company that wants indisputable proof that its supplier maintains a high level of quality management could ask the company to what?

An international company could ask its supplier for certification to recognized quality management standards, such as ISO 9001. This certification demonstrates that the supplier adheres to rigorous quality management practices. Additionally, the company could request regular quality audits and performance metrics to ensure continuous compliance and improvement. Finally, customer testimonials or case studies showcasing successful quality management outcomes can further validate the supplier's capabilities.