WTSD is a leading comprehensive operator in the field of intelligent rail transit services. With 12 years of experience in the industry, the company is dedicated to creating innovative solutions for convenient and efficient transportation, top-up and payment, and daily life consumption for cardholders. Their core business includes smart devices and copyright traffic cards, offering a variety of card options such as standard cards, customized cards, and series cards to meet the diverse needs of different customers.

WTSD also provides new media advertising services and has developed self-service card vending and recharging machines in major cities. They have expanded their business through online sales channels and have launched mobile apps and WeChat accounts, enhancing the convenience and accessibility of their services. With their commitment to public transportation and technological innovation, WTSD aims to make public travel smarter and more convenient for everyone