What Is a Material Ledger?

Material classification is a material category divided according to different requirements of material management according to certain signs. There are usually four classification methods: (1) According to the role of materials in production, they can be divided into: raw materials, main materials, auxiliary materials, fuel, power, equipment, tools and accessories. (2) According to the material attributes of the material capital body, it can be divided into: metal materials, non-metal materials, coal, petroleum, mechanical and electrical equipment, etc. (3) According to the use of materials, it can be divided into: production materials, maintenance technology materials, capital construction materials, scientific research materials, process equipment materials, and so on. (4) According to the management authority of the materials, it can be divided into: the unified distribution of materials by the state, the distribution of materials by the central authority, the distribution of materials by the local government, and the free purchase and sale of materials. ^[1]