Chinese Stocks Decline Most in Six Weeks on Earnings Concerns

China’s stocks tumbled the most in six weeks as weaker profit from China Petroleum & Chemical Corp. to Haitong Securities Co. underscored concern that the nation’s economic slowdown is deepening.

China Petroleum, Asia’s biggest oil refiner and also known as Sinopec, slid 1.8 percent after posting the lowest half-year profit since 2008. Haitong plunged 5.2 percent, pacing losses by brokerages, after saying six-month profit declined. Xinjiang Goldwind Science & Technology Co., the country’s second-largest maker of wind turbines, dropped to its lowest level on record after reporting first-half profit slumped 83 percent.