The development of the H2med hydrogen corridor is progressing rapidly across Europe as five transmission system operators (TSOs) have initiated a Call for Interest to determine the infrastructure needs of future users along the pipeline. Enagás, GRTgaz, OGE, REN, and Teréga have announced a Call for Interest open until December 18, 2024, inviting stakeholders to submit applications through the H2Digital platform. The proposal aims to outline the requirements covered by the corridor, focusing on the national hydrogen backbones the promoters plan to establish by 2030. In Portugal, REN aims to construct a hydrogen infrastructure for exporting 0.75 million tonnes of hydrogen per year, while in Spain, Enagás has obtained approval to develop 2,700km of pipelines and two storage facilities as part of the H2med project. Furthermore, GRTgaz is working on a 1,000km hydrogen connection from Marseille to Obergailbach in Germany, and Teréga is leading the 650km Hydrogen Southwest corridor project. OGE in Germany is progressing with the H2ercules project, which will contribute to the 9,000km Hydrogen Core Network recently approved to serve customers in southern and western Germany. The collaborative efforts of these TSOs signify a positive momentum towards establishing a robust hydrogen infrastructure in Europe, supporting the continent's energy transition goals.