This document outlines the key steps for establishing an effective inbound materials management (IMM) system, including listing all raw materials and packaging, developing supplier specifications signed off by relevant departments, identifying and assessing potential suppliers, auditing suppliers using a multi-functional team, and establishing an approved vendor list. It also discusses processes for receiving, storing, tracking, and releasing materials with defined quality acceptance criteria and continuous improvement efforts such as supplier training, performance reviews, and on-site verifications.