Seokjong Seo is the senior vice president of POSCO in Korea. He received his bachelor’s and master’s degrees from Hanyang University in Korea and his Ph.D. from the University of Tokyo, Japan. He joined the Automotive Steel Research Group of POSCO in 2001 as a researcher. He served as the Head of Hot Rolled & Wire Rod Steel Solution Group and Research Group. Currently, he is the Head of Steel Product Research Laboratories. He contributed greatly to securing weight reduction and excellent formability required from the automotive industry by developing ultra-high-strength steel products for automobiles. In recognition of this contribution, he received the Steel Technology Award from the Korea Iron & Steel Association in 2016. He also contributed to the development of hot rolled and wire rod products and solutions for applying them to various industries. Recently, he is leading the research on POSCO’s products, especially in developing various eco-friendly products for avoided greenhouse gas (GHG) emissions.