The new National Storage Mechanism (NSM) went live on 6 April 2020. The NSM is the FCA’s official way of storing the regulated information that it requires issuers to disclose under the Listing Rules, the Disclosure Requirements and Transparency Rules, and the Prospectus Regulation Rules, and of making that information accessible to all users.
The FCA has provided detailed instructions on the steps that companies need to take to complete the required registration and authorisation activities and how they should create an account with the Electronic Submission System (ESS).
For more information, see the FCA announcement – here: https://www.fca.org.uk/markets/primary-markets/regulatory-disclosures/national-storage-mechanism
And the FCA’s submitter user guide – here: https://www.fca.org.uk/publication/primary-market/fca-nsm-user-guide.pdf