On April 17-18, 2023, the project Electtra meeting took the place in Prague, Czech Republic. Beside the project partners we welcomed also other partners from academia, clinics and industry interested in Terbium-161 isotope. First day of the workshop was mainly dedicated to the project progress evaluation. Visit to the research reactor LVR-15 took place on the second day of the meeting, followed by further discussions and planning on the Electtra project as well as the preparation of possible future collaboration. This two day workshop on Tb-161 was full of fruitful discussions and very helpful for future planning. We believe it would pbe a basis for next Tb-161 research and development, leading to its clinical application.