The International Monetary Fund has called for banks in China to bump up their capital buffers in the wake of a credit boom in the world's second-largest economy. In a review of China's financial system, the IMF said lenders may not have enough capital to weather potential losses (www.marketwatch.com/story/imf-warns-chinese-banks-may-be-short-on-assets-to-offset-potential-credit-losses-2017-12-06) from those credit risks. Mining stocks in the U.K. can be sensitive to developments in China, where companies are big buyers of precious and industrial metals.