Cash-strapped China Evergrande Group faced a Wednesday deadline for making an offshore bond payment, while a credit rating downgrade on another property firm added to mounting concerns about a liquidity squeeze in the sector.

Evergrande, the world's most indebted developer, has been stumbling from deadline to deadline in recent weeks as it grapples with more than $300 billion in liabilities, $19 billion of which are international market bonds.

The company has not defaulted on any of its offshore debt obligations, but another overdue $148 million bond payment must be made on Wednesday. There was no word on that payment as of early afternoon Asia time.