Didi Chuxing, the on-demand giant that drove Uber out of China, is set to become the world’s second-highest valued tech startup. Beijing-based Didi is in the process of raising a round that could reach as high as $6 billion at a valuation that would exceed $50 billion, a source with knowledge of discussions told TechCrunch. That’s not far from Uber itself, which is said to… Read More