A Chinese company, Shenzhen Senior Material, has been allowed to release 900 tons of the toxic substance methylene chloride yearly.

Despite being banned in Sweden since 1996 due to its health risks, including cancer and nerve damage, the Environmental Court has granted the exemption.

The company produces separator film, a crucial component in lithium batteries vital for green energy transition.

Authorities argue there are no alternatives for producing this film while minimizing exposure risks for workers.

This decision raises concerns about the trade-offs in the pursuit of green technology.