Over the past 27 years, IPHA has regularly organised technical seminars as a platform for members to explore new ideas, share expertise, and strengthen collaboration across the global precast hollow core industry. The 2025 IPHA Technical Seminar took place in Krakow, Poland, from 23–24 October, hosted at the Vienna House by Wyndham. The event brought together 56 technical experts from 16 IPHA member countries, marking the conclusion of the ambitious three-year research project “HOLCOLODIS – Load Distribution in Hollow-Core Floors.”