Chinese electric vehicle startup Niutron on Wednesday announced that it will issue a refund to roughly 24,000 customers who placed orders for the company’s first car model, apologizing for not being able to deliver the NV crossovers in the short term “due to internal reasons.” There has been speculation that Niutron’s manufacturing partner, a small Chinese automaker called Dorcen, has failed to secure approval from local regulators for reopening its facility after idling assembly lines for more than two years. Four-year-old Niutron was founded by Li Yinan, a former vice president at Huawei, and has received funding from investors including IDG Capital and Coatue Management. [Shanghai Securities News, in Chinese]