In August 2020, the United States Department of Defense published the names of companies operating directly or indirectly in the United States with ties to the People's Liberation Army. China Unicom was included on the list.

In November 2020, Trump issued executive order 13959 prohibiting any American company or individual from owning shares in companies that the United States Department of Defense has listed as having links to the People's Liberation Army, which included China Unicom.

After the EO was put in place, NYSE said it would de-list Unicom.

From an article published yesterday: https://www.scmp.com/business/companies/article/3118616/china-telecom-china-mobile-and-unicom-apply-new-york-stock

Hours after Joe Biden was sworn in as the 46th president of the United States, China’s three telecommunications companies filed requests with the New York Stock Exchange (NYSE) to review their delistings, seeking to reverse the November 2020 executive order by Donald Trump to expel them.

Does 3232 fit with this somehow?