Final answer:
The appropriate action is to request the SDS from the supplier or manufacturer of the material.
Step-by-step explanation:
If the SDS for a material your company buys from another company is missing from your company's files, the most appropriate action for you to take is to request the SDS from the supplier or manufacturer of the material. The SDS (Safety Data Sheet) is an important document that provides information about the hazards, handling, and safe use of the material. By obtaining the SDS, you can ensure that your company has the necessary information to ensure safety and compliance with regulations.
When requesting the SDS, you can reach out to the supplier or manufacturer directly and explain the situation. They should be able to provide you with a copy of the SDS or direct you to where you can access it. It's important to keep accurate and up-to-date SDSs for all materials used in your company to ensure the safety of employees and comply with relevant regulations.