China is a notoriously difficult market for US companies to penetrate. The country's regulatory landscape and numerous government-run entities can act to turn foreign competitors away. That is why credit rating agency S&P Global Inc. (SPGI) scored a big win by becoming the first - and only - authorized foreign-owned credit rating agency to operate in China. This underscores an already strong ratings business for S&P Global, and gives the company a potential growth engine in the years ahead. The stock itself has aggressively appreciated over the past year, leaving us optimistic about