In a case between Taiwan's Fair Trade Commission (FTC) and Philips, the Supreme Administrative Court of Taiwan made a final ruling on April 4 2007. The Court held that a patent pool that included patents owned by Philips, Sony and Taiyo Yuden which were licensed in a package to Taiwan's CD-R manufacturers was not a concerted action. It upheld the ruling of the Taipei High Administrative Court to revoke the decision of the FTC and said that the term "concerted action" used in Article 14 of the Fair Trade Act refers to the action of enterprises with a competitive relationship. Such competitive relationship will be deemed to exist where the goods or services provided by the enterprises are substitutable by each other's goods or services. Since the CD-R manufacturers must use the orange book-compliant techniques covered by the patents owned by Philips, Sony and Taiyo Yuden in combination in order to produce CD-Rs, and since CD-Rs cannot be produced using any one of the patents alone, the Court held that the patents owned by Philips, Sony and Taiyo Yuden are complementary to each other rather than substitutable for each other. As such, there is no competitive relationship among them.