Trade tensions between the European Union and China are reaching new heights. Indeed, for several months, Brussels has been targeting Chinese companies accused of benefiting from public subsidies, which distorts competition. Under the Foreign Subsidies Regulation (FSR), the EU has launched several investigations, particularly against CRRC, the Chinese giant in railway equipment, and manufacturers of solar panels involved in European projects. In response to these investigations, Beijing has reacted strongly and denounced discriminatory practices. This standoff, which reflects deep divergences over the rules of international trade, could redefine the balance of power between the two economic powers. While the EU seeks to protect its market, China is concerned about a tightening of regulations that would hinder the expansion of its industrial champions. In this context, investors and companies are preparing for a significant climate of uncertainty, where every political decision can influence the dynamics of exchanges between Europe and the world's second-largest economy.