...Outlook: Negative The negative outlook on State Grid Corp. of China (SGCC) reflects our negative outlook on the sovereign credit rating on China. Both ratings will move in tandem because of our assessment of an extremely high likelihood of support from the Chinese central government to the company. We expect SGCC to preserve margins through stable transmission and distribution (T&D) tariffs amid moderate growth in power demand in China. Meanwhile, we believe power sector reforms in China, while evolving, are likely to have long-term positive credit implications for SGCC. The stand-alone credit profile is therefore likely to remain stable for the next 24 months, at least....