Yadea C-umi

Dong Jinggui and his wife began to engage in the wholesale and retail of motorcycle parts. Later, he switched to motorcycle vehicle business.

Yadi Technology Group Co., Ltd. ('Yadi Technology Group) was established.

He switched to making electric vehicles, with the brand name "Yadea". On May 19, 2016, Yadea Group Holdings Limited was listed in Hong Kong.

The company was ranked second worldwide with 6 million two-wheelers sold. The company is the world's largest manufacturer of electric scooters and has around 340 employees that work in development.

Yadea presented its own graphene batteries that also work at temperatures of −20 °C. Also Yadea presented four e-scooters in Germany, with the C-Umi reminiscent of the Vespa, and for the Yadea C1S they collaborated with Austrian design agency, KISKA GmbH, and the G5 with higher-quality equipment.

Yadea held over 1300 patents. At the end of 2022, the Volt Guard VFV, another e-scooter and an electric light motorcycle Keenness VFD were presented at the EICMA; the latter delivers 10 kW (14 hp) and has a torque of 280 Nm. Yadea launched its US market entry at the Consumer Electronics Show (CES),

. In mid-2023, Yadea and Porsche presented the VF F200 e-scooter, the design of which was created in collaboration with the Porsche Design Center.