Tesla and Germany’s BMW are suing the European Commission, joining a growing band of Chinese automakers to oppose the European Union on its punitive tariffs on electric vehicles.

The EU imposed anti-subsidy tariffs of 7.8% on Tesla on top of the 10% levy. BMW’s imports were hit with a 20.7% duty. The firm was hit because its electric Mini Cooper and the 100% electric Mini Aceman are made in China, according to car website Autogear.

BMW has joined Chinese producers in filing a challenge at the Court of Justice of the European Union (CJEU) against EU tariffs on China-made electric vehicles (EVs), according to a filing on the court's website.

Tesla is taking the EU to court over tariffs it imposed on imports of electric vehicles from China. The European Court of Justice published the case on its website on Monday morning. The US company follows BMW of Germany and several Chinese carmakers in filing claims.