Brand: SME
SME 309 is a specific stock symbol for a company listed on the Shanghai Stock Exchange (SSE) in China. As of my latest knowledge, the company with this stock symbol is Beijing Xingyu Electric Co., Ltd., which is involved in the manufacture and sale of electrical wires and cables for various purposes, such as construction, railway, and automotive industries. You can check the latest information on this company, including its stock price, news, and financial reports, at reliable sources such as financial websites, stock market apps, or official SSE websites.