Receiving a production certificate from a regulatory authority like the CAAC is a critical step for aviation and aerospace companies. It not only validates the safety and reliability of the product but also significantly enhances the company's credibility in the market. For EHang, this approval could lead to increased orders, partnerships, and ultimately, revenue growth. Given the direct impact on EHang's core product and its future revenue potential, this news is highly relevant and important for investors, warranting a positive outlook on the stock in the short term.