On October 26, Prof. Jianghui Geng was invited to attend the "International Workshop on Theories and Frontiers of GNSS Positioning: Advances in PNT, Remote Sensing, and Emerging Geospatial Technologies" at The Hong Kong Polytechnic University. During the workshop, Prof. Geng delivered a presentation on high-precision GNSS, covering fundamental GNSS theories, the International GNSS Service (IGS), the generation and integration of high-precision satellite products, the open-source software PRIDE PPP-AR, and the geohazard monitoring software platform GSeisRT. He also engaged in in-depth discussions with attendees from universities and research institutions.