Mitsubishi Chemical's partner in the Ardea JV, Sumitomo Metal Mining, have traditionally made cathode materials only in Japan but according to this article they aim to triple their production by 2030 and are looking at manufacturing overseas:
"Cathode material supplier Sumitomo Metal Mining is looking to set up a new production base in the U.S. It has in the past produced cathode material only in Japan. While it aims to triple its cathode material production by 2030, the company is now considering bringing some of the production overseas."
