Honda's CEO said it was "difficult" to explain why Nissan would make a good business partner. Analysts believe that Honda's ideal partner for a merger would be a more "healthy and financially sound company.

Hon Hai Precision Industry Co., the Taiwan-based manufacturer of iPhones known as Foxconn, is putting its interest in pursuing Nissan Motor Co. on hold while the Japanese automaker is in negotiations for a potential merger with Honda Motor Co.

Japanese automakers Nissan and Honda have announced plans to work toward a merger that would catapult them to a top position in an industry in the midst of tectonic shifts as it transitions away from its reliance on fossil fuels.