Recently, the CEO has invited a business consultant and the consultant has analyzed the planning parameters within a specific factory of Interproduction Inc. The used planning method for all items is MRP (material requirements planning). Three different types of chassis (1011A, 1011B, 1011C) are produced in this production area. The Safety Stock has been identified for all items with a value of zero. The Planned Lead Times are for all items one month. The Lot Size Policy is for all items except the purchasing items (raw material) lot for lot (FOP1). The MRP Bill of Material is presented in Table 2