France's finance minister says ruling against the Siemens-Alstom tie-up 'serves the interests of China'. : Brussels has knocked down a proposed French-German rail merger, designed to help Europe compete with China. The EU's competition commission blocked the tie-up, saying uniting France's Alstom with the rail arm of Germany's Siemens would lead to higher prices. The firms had said the merger would create an industrial champion on a par with other global players. France's finance minister, Bruno Le Maire said the decision would "serve the interests of China".