Chordate Medical Holding AB (publ) (“the company, or “Chordate”) is a Swedish medical technology company that has developed and patented an innovative treatment method: K.O.S. The company’s existing EC-certificate for K.O.S has now been granted an extension with the indication Chronic Migraine and the intended use: Preventive treatment of chronic migraine in adults over 18 years. The CE marking means that the K.O.S treatment meets the clinical efficacy and safety requirements for in the European Medical Devices Directive for the new indication. The approval allows Chordate to commercialize the migraine treatment within the EU. This CE marking comes one year ahead of the company’s preliminary plan.