As of December 13, 2022, there is none.
According to inquiries from listed companies, Imperial Tea was established in 2014 and renamed Heytea in 2016. As of December 13, 2022, it has not yet been listed. So it’s not that Imperial Tea is not a listed company.
HEYTEA’s original name was ROYAL TEA. Due to the inability to register a trademark, it was fully upgraded to the registered brand HEYTEA in 2016.