Chinese equities have suffered the sharpest one-day crash in eight years, sending powerful tremors through global commodity markets and smashing currencies across East Asia, Latin America and Africa.
The Shanghai Composite index fell 8.5pc despite emergency measures to shore up the market, with a roster of the biggest blue-chip companies down by the maximum daily limit of 10pc. The mood was further soured by news that corporated profits in China are now contracting in absolute terms, falling 0.3pc over the past year.