Re: large multinationals
Basic trademark infringement. Sounds like the decision is a repeat of the Tesco v Levis case from ten years ago - that one went to the ECJ. The ECJ confirmed that Levis could control the first sale of their jeans in Europe - Tesco couldn't buy the product from outside of Europe and place it on the market in Europe without Levis' consent (which of course they didn't have).
Trademark law creates a "wall" around Europe which means that only the trademark owner (or somebody authorized by them) can be the first person to put the product on the market in Europe. This allows manufacturers to control movement of goods into Europe, but *not* within Europe. So manufacturers can e.g. establish different prices in different regions (e.g. Europe, USA, Asian countries etc.) - for example sell into India with a lower profit margin in order to achieve sales and develop the market, and sell into the established European market at a higher price point.
European free trade laws ensure that once the product is legitimately on the market in Europe, the trademark owner has exhausted their rights and (generally - might have to re-label or replace instructions for language/safety issues) can't control further movement/sales within Europe.