“Materials management involves the sourcing, procurement, storage and utilisation of direct or indirect materials (see below) used in the manufacturing process. By strictly managing this area of activities, organisations are able to ensure that they always have their required supply of materials delivered to the right place, at the right time, in the right quantity, of the right quality, at a reasonable price.”

What is Materials Management? Beginner's Guide – Unleashed Software

https://www.unleashedsoftware.com/blog/so-what-is-materials-management-heres-a-guide-to-the-basics

A manufacturing business needs good materials management if it is to monitor its costs and efficiencies. But what is materials management?