A major Chinese investment trust has missed payments to corporate investors, sparking a rare protest and adding to concerns that a slump in China’s property market could trigger a wider financial crisis.

At least three Chinese companies — Nacity Property Service, KBC Corporation and Xianheng International Science and Technology — said in separate stock exchange filings in recent weeks that Zhongrong Trust had failed to pay the interest and principal on several investment products. The scale of payments missed exceeded 110 million yuan ($15 million), according to their statements.

Zhongrong Trust, which managed $87 billion worth of funds for corporate clients and wealthy individuals as of the end of 2022, is one of thousands of wealth management firms in China that offer relatively high levels of return to investors.