Produce products only after being ordered by a customer, which helps reduce inventory costs. In contrast, BTS companies make products in bulk and then sell them to retailers or distributors. This helps them keep their costs down by reducing the need for storage space and allows them to take advantage of economies of scale. However, it also means that they may not be able to respond as quickly to changes in demand. Therefore, CTO businesses are better suited to industries where product demand is relatively stable, while BTS businesses are more appropriate for highly cyclical sectors.