Question juridique clé
Whether the Zurich Commercial Court had subject-matter jurisdiction under Art. 6 ZPO over the claim by a non-registered plaintiff against a registered defendant.
Solution extraite
Yes. A non-registered plaintiff may choose the commercial court if the dispute concerns the defendant's business activity and the appeal in civil matters is available.
Motifs extraits
Art. 6(3) ZPO is a true forum choice for any plaintiff not entered in the commercial register when only the defendant is registered. The exception refers to the remaining requirements in Art. 6(2) ZPO, not to an additional merchant/consumer limitation. The history and wording do not support narrowing the provision.