Abstract: The successful close of the 2019 International Plastics and Rubber Exhibition (K?SHOW 2019) indicates that plastics are still the most innovative, indispensable and future?oriented fundamental materials. With the circular economy as a central topic, this K?SHOW 2019 focused on the innovative harvest in the materials and industry including the resource?saving processes, digitalization, functionality, renewable energies, circularity and sustainability, and also exhibited innovative solutions related to circular economy, intelligence, and integration that highlighted by the global injection molding industry. This paper also briefly discussed the highlights of the K?SHOW 2019 and prospected the development trends of technology in the injection molding industry.