“The ‘centre of main interests' should correspond to the place where the debtor conducts the administration of his interests on a regular basis and is therefore ascertainable by third parties.” 33. That definition shows that the centre of main interests must be identified by reference to criteria that are both objective and ascertainable by third parties. That objectivity and that possibility of ascertainment by third parties are necessary in order to ensure legal certainty and foreseeability concerning the determination of the court with jurisdiction to open main insolvency proceedings. That legal certainty and that foreseeability are all the more important in that, in accordance with article 4(1) of the Regulation, determination of the court with jurisdiction entails determination of the law which is to apply. 34. It follows that, in determining the centre of main interests of a debtor company, the simple presumption laid down by the Community legislature in favour of the registered office of the company can be rebutted only if factors which are both objective and ascertainable by third parties enable it to be established that an actual situation exists which is different from that which locating it at the registered office is deemed to reflect. 35. That could be so in particular in the case of a ‘letterbox’ company not carrying out any business in the territory of the Member State where its registered office is situated. 36. By contrast, where a company carries on business in the territory of the Member State where its registered office is situated, the mere fact that its economic choices are or can be controlled by the parent company in another member state is not enough to rebut the presumption laid down by the Regulation.”
“This leads on to the next question: what is meant by “ascertainable”? Mr. Isaacs submitted that information would count as being ascertainable even if it was not in the public domain if it would have been disclosed as an honest answer to a question asked by a third party. Provided that a third party asked the right questions, and was given honest answers, the result of the inquiry would be ascertainable. Mr. Zacaroli submitted that this formulation was far too wide and blurred the distinction between what was ascertainable and what was not. On the basis of Mr. Isaacs’ submission the requirement of ascertainability was diminished almost to vanishing point. Rather, what was ascertainable by a third party was what was in the public domain, and what a typical third party would learn as a result of dealing with the company. I agree with Mr. Zacaroli. As Chadwick LJ says, one of the important features is the perception of the objective observer. One important purpose of COMI is that it provides certainty and foreseeability for creditors of the company at the time they enter into a transaction. It would impose a quite unrealistic burden on them if every transaction had to be preceded by a set of inquiries before contract to establish where the underlying reality differed from the apparent facts.”