ChainCatcher news, according to Jinshi reports, ahead of Federal Reserve Chairman Powell's upcoming speech at Jackson Hole, investors have been buying large amounts of U.S. long-term government bonds, driving yields down. Recent data has cooled market expectations for a rate cut in September. Powell faces a delicate balance and may avoid providing clear guidance before the August non-farm payroll data is released. Observers expect him to reiterate the Fed's independence from political pressure.