As per the last accounts, Birmingham City owe Oriental Rainbow Investments around £24M. Oriental Rainbow Investments have also made around £30M of loans available to BSHL.
Because Oriental Rainbow Investments are an investment company based in the British Virgin Islands, there is no true office address for them. Their official registered address is a nameplate on an office wall.
However, they once had an address in Hong Kong which is connected to Wang Yaohui. That address is:
Suite 802-804 Jardine House
1 Connaught Place
It is unknown if Oriental Rainbow Investments have any other investments than the ones made in Birmingham City and Birmingham City Stadium Ltd.
You can read more about Oriental Rainbow Investments at almajir.net by clicking this link.