Can Guiyang Provident Fund inquire about marital status?

Of course. According to the inquiry of official website of Guiyang Social Security Bureau, as of June 14, 2023, Guiyang Housing Provident Fund Management Center docked with the civil affairs department, established a marriage information investigation mechanism, opened a marriage inquiry port, and inquired about the marital status. Guiyang, also known as Lincheng and Zhucheng, is a prefecture-level city, provincial capital and I-type city under the jurisdiction of Guizhou Province.