The article focuses on the question of the law applicable to the sale or lease of the entirety of the assets of the enterprise in private international law. The author adopts the understanding of an enterprise in terms of its subject matter — a collection of assets tradable on a contractual or statutory basis (e.g., inheritance). The paper focuses on acts concerning an enterprise, which are effectuated between the living (inter vivos). The issue of acquiring an enterprise mortis causa is not covered. The main thesis defended in the article is the interpretation about the uniform law applicable to the right to an enterprise in the conflict of laws (as an opposite view to the concept of the severance of the law applicable to the enterprise). The text consists of the following parts: 1) comparative remarks, 2) transfer of an enterprise in the norms of uniform law, 3) determination of the law applicable to an enterprise, 4) scope of the law applicable to the enterprise in conflicts law, 5) the law applicable to contracts involving an enterprise, 6) the law applicable to the liability of the purchaser for the debts of an enterprise, 7) conclusion.

The article is a polemic against the views encountered in doctrine and case-law that a court is absolutely bound by an A1 certificate confirming the social security legislation to which a worker is subject - if it is proven that the certificate was obtained fraudulently. The thesis that there is no such obligation of the Court to respect the fraudulently obtained certificate, is derived from the existing prohibition in the EU order against the abuse of rights and the benefit of fraud and the obligations of the forum to determine and apply the applicable law of its own motion – on the grounds of dogmatic and critical method. The article proposes, following the position put forward by CJEU Advocate General Henrik Saugmandsgaard Øe, to assume that the court is not bound by the outcome of a dialogue and conciliation procedure aimed at removing a defective A1 certificate from circulation.

The current situation in relations between Poland and Ukraine, the war events in Ukraine, and the economic cooperation between the two countries have their own legal implications. There is no doubt that contracts concluded between Polish and Ukrainian entities will generate legal proceedings in connection with non-performance or improper performance of contractual obligations by one or both counterparties. Consequently, the laws of both countries governing the recognition and enforcement of foreign judgments will be relevant. It should be emphasized that so far the number of such proceedings in Polish-Ukrainian relations has been negligible, as evidenced by the lack of a large number of court cases in this respect. However, bearing in mind the development of economic cooperation and the need to establish uniform and legally justified judicial practice in the future regarding the recognition and enforcement of Ukrainian court judgments in Poland, judges should be aware of which provisions should be applied in such proceedings and to what extent. The correlation between the provisions of the 1993 Polish-Ukrainian Convention and the domestic law of Ukraine and Poland is not straightforward. The purpose of the present gloss is to present the most controversial aspects related to the application of governing law in commercial cases concerning the recognition and enforcement of foreign judgments, on the example of one of the few judgments issued in this area. In particular, the gloss concerns the analysis of the Polish court’s failure to apply the provisions of the agreement between Poland and Ukraine on legal assistance and legal relations in civil and criminal matters dated 24 May 1993, and the legal consequences of applying domestic law instead.