The London Stock Exchange has published AIM Notice 50 which, amongst other things, announces the implementation of updated versions of the AIM Rules for Companies and the AIM Rules for Nominated Advisers from 30 March. Marked up versions of both are also available on the LSE’s website.

In providing feedback on the changes proposed in AIM Notice 49, the LSE has said that respondents were supportive of the proposed new obligation for an AIM company to disclose on its website details of how it complies or explains against a recognised corporate governance code chosen by the board of directors. Some respondents suggested that the code be defined. However, the LSE is of the view that it remains preferable for AIM companies to have a range of choice of corporate governance codes to suit their specific stage of development, sector and size rather than have a prescribed list of recognised codes.

In response to feedback on the proposed changes, the LSE has amended the proposed Rule 26 disclosures to require an AIM company to review its corporate governance disclosures annually, rather than maintain them up to date. The LSE has said it expects that in most cases this review will be carried out at the same time as an AIM company prepares its annual report and accounts.

From 30 March 2018, all new applicants to AIM will be required to state which corporate governance code they intend to follow. However, in order to give AIM companies and nominated advisers sufficient time to prepare for the new Rule 26 corporate governance requirements, these will take effect from 28 September 2018.