Ukraine became an Associate Member State on 5 October 2016.
Ukraine and CERN signed a Co-operation Agreement in 1993, and a Joint Declaration in 2011, setting priorities in scientific-technical cooperation. In reality, Ukraine’s relationship with CERN dates back much further, principally through CERN’s cooperation with the Joint Institute of Nuclear Research (JINR) in Dubna, Russia, of which Ukraine is a member. CERN-JINR co-operation in the field of high-energy accelerators started in the early 1960s and ever since, the two institutions have formed a bridge between East and West that has made important contributions to the development of global, peaceful scientific co-operation.
Beyond its participation through JINR, Ukraine has been a long-time contributor to the ALICE, CMS and LHCbexperiments at the LHC, and to research and development on new accelerator technologies. Ukraine also operates a Tier-2 computing centre in the World-wide LHC Computing Grid (WLCG) that federates globally distributed resources to process and analyse the massive amounts of data generated by the LHC experiments.