Since joining the Ministry of Economy, Trade and Industry (METI), Ms.Nishikawa has been involved in a broad spectrum of key policy areas. Her experience spans trade policy initiatives, including the Japan-U.S. Economic Dialogue and APEC; the formulation of Japan’s energy mix in the immediate aftermath of the Great East Japan Earthquake; and efforts to strengthen oil supply chain resilience. She has also contributed to climate change and environmental policies, including the implementation of the Paris Agreement and the promotion of green finance, as well as to international standardization policy. She has served in her current position since July 2025.