Japan Blocks Chinese Battery Makers Over Cyber Fears

Japan has denied cybersecurity approval to several Chinese manufacturers of storage batteries, blocking their products from use in sensitive government and infrastructure projects. The decision, reported by Japanese media, targets companies including CATL and BYD, two of the world’s largest battery producers. The Japanese government requires all equipment used in critical sectors—such as power grids and data centers—to pass a cybersecurity review. Officials cited unspecified risks of data leakage or remote manipulation as reasons for the rejections. The move follows similar restrictions by the United States and Europe on Chinese technology firms. The affected Chinese companies have not publicly commented. Japan’s trade ministry stated the decision was based on national security, not trade policy. Analysts say the ban could slow Japan’s shift to renewable energy, as Chinese batteries are widely used in solar and wind power storage.