Box horses can be paid in Sourdis. The reason why Box Horse can pay in Sourdis is that Box Horse has cooperated with Sourdis. After Box Horse has reached a cooperation with Sourdis, Sourdis can use its consumer cards to pay in Box Horse, including Sourdis Catering Card and Sourdis Consumer Card. This cooperation can bring many benefits, such as improving the convenience of consumers' payment and increasing the sales of box horses.