Change in Connectivity Support Services effective June 1

May 28, 2026

Dear Chemelot-site user,

As previously communicated, several changes will take place in the coming period regarding the connectivity services on the Chemelot site. As part of this transition, SouthernHill will take over the support services for Valid’s connectivity environment as of June 1, 2026.

From that date onwards, all connectivity-related incidents, questions and change requests can be reported directly to the SouthernHill Service Desk.

The information below is relevant exclusively to users of the connectivity services within the Chemelot site who previously contacted Valid regarding malfunctions.

New Support Contact for Connectivity Issues

Please note: the SouthernHill Service Desk handles connectivity-related incidents and support requests only. For workplace, software, application or end-user related issues, please contact your internal service department or third-party support provider.

For connectivity-related incidents and support requests, you can contact SouthernHill from June 1 via: SouthernHill Service Desk +31 (0)88 050 1601.

You can also use the following email addresses:

  • servicedesk.transit@southernhill.nl
    For submitting additional information related to connectivity incidents or service disruptions. In case of P1 and/or P2 incidents, please always contact the Service Desk by phone first.
  • pmo.transit@southernhill.nl
    For TAs, RFCs, RFIs and all other non-incident related connectivity requests or questions.

When Can You Contact Us?

During office hours (Monday to Friday, 08:30 - 17:00) you can contact the SouthernHill Service Desk for:

Outside office hours (Monday to Sunday, 17:00 - 08:30, including public holidays), we kindly ask you to contact the ACC/OCC only in case of a P1 incident (critical service disruption). If required, they will escalate the issue to SouthernHill.

Important details!

  • The SouthernHill Service Desk is exclusively available for connectivity-related incidents and support requests. Workplace, software and application-related issues remain outside the scope of these services and should continue to be handled through the existing support channels.
  • Until May 31, all connectivity-related incidents will continue to be handled via the Valid Service Desk.
  • From June 1, connectivity-related incidents and requests can be reported directly to SouthernHill. Between June 1 and July 1, SouthernHill will coordinate the follow-up and resolution of incidents and requests together with KPN.
  • Temporary Change Freeze Until 30 June. Until 30 June 2026, no standard changes to existing connectivity services will be taken into consideration. More details can be found at /en/temporary-change-freeze-during-connectivity-services-transition/.
  • From July 1 onwards, SouthernHill will provide and manage all connectivity support services fully under its own responsibility.

With this transition, we aim to ensure a smooth continuation of the connectivity support services on the Chemelot site.

If you have any questions regarding this change, please feel free to contact us via chemelot@southernhill.nl.