Date: Thursday, April 23, 2020, 10 AM

Location: Kellerhals Carrard, Effingerstrasse 1, 3001 Bern

Dear Shareholders

Owing to the extraordinary circumstances related to the coronavirus, Comet will hold its Annual General Meeting on April 23, 2020 based on Art. 6a(1)(b) of COVID-19 Ordinance 2 (version of March 16, 2020) on measures to combat the coronavirus, without the physical presence of shareholders. The Board of Directors invites all shareholders to cast their votes by written or electronic proxy by issuing instructions to the independent proxy.

The full annual report including the compensation report and the reports of the independent auditors is published on the website of Comet Group.Using the form that you receive with the invitation by mail, you can appoint a proxy and/or order a short version of the annual report. You will receive the short report once your request has been received by Devigus Engineering AG, the company that is assisting us in performing the Annual General Meeting.

To vote electronically, please visit the website www.gvmanager.ch/comet. You can also submit changes of address here. You will find your personal one-time code for appointing a proxy in the top section of the registration form. Electronic remote voting will be possible from 6:00 AM on April 2, 2020 through 12:00 noon on April 20, 2020. Shareholders whose name is entered in the Company’s share register on April 14, 2020 are entitled to vote.

We thank you for your understanding and support in the fight against the further spread of COVID-19 and wish you and your families all the best. Stay healthy.

On behalf of the Board of Directors

Chairman

Heinz Kundert