The European Union and the Western Balkans share the same history and future. Therefore, the Chinese interest in the Balkans has long been perceived as an intrusion. Yet, on December 30, 2020, the European Union and China reached an historic Agreement on investment and trade. What does this rapprochement between the two rival suitors mean for the Western Balkans? For sure, the EU-China Agreement is controversial. But it may show a promising opening, by China, to a rules-based economic system. In Eastern Europe, this means that China could be brought to respect the EU 2030 agenda, especially for what concerns the green transition and digitalization.