Several batches of child safety seats sold on various e-commerce platforms, such as JD.com and Alibaba, were tested to be unqualified by the Shanghai Market Supervision and Administration Bureau, China’s state broadcaster CCTV reported on Sunday.

Although China’s current law does not demand the use of child safety seats, many Chinese parents use those devices to protect kids from injury or death during vehicle collisions.

Chinese regulators found that 14 of 58 batches of such seats sold online were unqualified. In particular, out of 12 batches seats from JD.com, 5 were problematic, according to the Shanghai regulator, while 2 out of 23 batches from Alibaba’s Taobao and Tmall also failed the safety tests, including simulated dynamic collision experiments and anti-burning performance.

In addition, one out of three batches of seats from cross-border platform Kaola, which was acquired by Alibaba in a USD 2 billion deal, was also unqualified.

Some products sampled from Yhd.com, which was acquired by JD.com, and Vipshop, which has both Tencent and JD.com as investors, were also found to be defective.

KrASIA found Tuesday that unqualified seats under the brand Carmind are still sold on JD.com and seats under the label Babyley (or Guaiguaile in Chinese) were also available on Alibaba’s Taobao.

Neither Alibaba nor JD.com responded to KrASIA‘s requests for comments.