On 7th October 2019, South Korea finally open the Chemical Substance Information Communicative Organization (CICO) [1] to the public. CICO is the SIEF system used in K-REACH and is a hugely important topic for stakeholders (Chemlinked News [2]). According to Article 10 of K-REACH, the existing chemical substances which are imported or manufactured over 1 ton per year shall complete pre-registration or late pre-registration to obtain a Grace Period for importation or production prior to formal registration. For enterprises that wish to register the same substance, it is necessary to join CICO first and then establish a "consortium" to prepare for joint registration during the grace period.