Corporate Action Harmonisation: Postponement of Production launch from 24 October to 21 November 2022


Clearstream Banking S.A.1 informs customers about the change of the indicated deployment date for the Corporate Action Harmonisation project (Harmonisation of Clearstream Banking’s asset services), originally planned for 24 October 2022. The implementation of the entire Corporate Action Harmonisation project will be postponed to 

the weekend 19 and 20 November 2022
for business day, Monday, 21 November 2022


On 30 September 2022, the decision was made by Clearstream Banking that the implementation of Corporate Action Harmonisation will be introduced on 21 November 2022. After a market consultation including customers and partners, it has shown that in order to achieve the best level of confidence for the market, it is best to allow all participants further preparation and time to enable a smooth and seamless implementation. As a result of this, Clearstream Banking has taken a decision to postpone the harmonisation of Clearstream Banking’s asset services from initially planned 24 October 2022 to 21 November 2022.

Until the new implementation date, 21 November 2022, corporate action processing in the custody system will remain unchanged.

Next steps

The published documents below will be adapted to reflect the postponement in the coming days:


If there are any questions, customers may contact their Relationship Officer, Clearstream Client Services or the OneClearstream Customer Readiness Team.


1. Clearstream Banking refers collectively to Clearstream Banking S.A., registered office at 42, avenue John F. Kennedy, L-1855 Luxembourg, and registered with the Luxembourg Trade and Companies Register under number B-9248, and Clearstream Banking AG, registered office at 61, Mergenthalerallee, 65760 Eschborn, Germany and registered in Register B of the Amtsgericht Frankfurt am Main, Germany under number HRB 7500.