Electromagnetic (EM) problems are formulated by Maxwell’s equations or their equivalent equations and numerical methods are playing a vital role for solving these equations based on computer technologies. The speed, accuracy, cost, and robustness are the primary concerns for evaluating the performance of numerical methods. This session mainly focuses on presenting the state-of-the-art development and advances on the numerical methods. All submissions related to this topic, including theoretical, experimental, and practical contributions, are welcome.