Vietnam firms face rising delisting risk as concentrated ownership squeezes out minority investors, raising governance concerns. State-controlled PV Gas said it no longer qualifies as a public company after parent PetroVietnam held 95.76% of voting shares, breaching free-float rules. Similar ownership structures exist at PetroVietNam Low Pressure Gas Distribution, Vinacomin and other large firms. Under Vietnam’s securities law, prolonged non-compliance can trigger revocation