Frank Kämmer MS is Chief Sommelier of Changyu Pioneer Company and international brand ambassador for KOYA. Throughout his career he has earned many titles and honours, and he was recognized as one of Europe’s leading sommeliers. In 1996, Frank Kämmer passed the Master Sommelier examination, which is generally acknowledged as the highest international level of proficiency and knowledge in this profession. Kämmer is a renowned expert for Chinese wines and spirits.