Jardine Matheson developers belong to state-owned enterprises.
What you want to ask is whether Jardine Matheson developers belong to state-owned enterprises? Belong to.
According to Fangtianxia.com, the developer of Yihe Tianyu Project is Yihe Real Estate Development Co., Ltd., a real estate company under Shanxi Energy Transportation Investment Co., Ltd. and a developer of state-owned enterprises.