BANGKOK -- In the 20 years since the Asian currency crisis of 1997, the region's companies have generally done well. They recovered from that setback and shrugged off the global financial crisis triggered by the U.S. housing meltdown a decade later, thanks in large part to strong growth in China.

Things are looking less rosy of late. China's economy has slowed, pushing commodity prices lower and eroding the profitability and growth of big Asian companies. As a whole, they are forecast to post smaller profits for the second straight year in fiscal 2016, the first time that has happened since the currency crisis.