The direct purchasing program for the construction materials is a system which requires that, if the materials used in a construction project owned by a public agency require the use of a material that is designated as a "Construction Material Subject to Direct Purchasing", such a material is to be purchased directly from the manufacturer in order to prevent the manufacturers of such products being limited to the role of a sub-contractor of a large corporation and to facilitate stabilization of the operation of the SMBs by increasing the purchase of products by SMBs.
- The products among the Competition-between-SMBs products that are to be used as construction materials are selected and designated as the "Direct Purchase Items" (122 construction materials in 2014).