"TM" does not mean that the trademark is under review, it simply means that the mark is being used as a trademark. "TM" is the abbreviation of "trademark" in English, indicating that the mark is used as a trademark. As long as the operator wants to tell others that a certain mark is used as a trademark, he can use the "TM" mark regardless of whether the mark applies for trademark registration. If a trademark with the "TM" logo is identical or similar to a registered trademark, it will constitute infringement of other trademarks and will be punished. At the same time, if the trademark with the "TM" logo is not registered in time and other companies rush to register the trademark, then after the trademark registered by others is officially registered, the company can no longer use the trademark with the "TM" logo, otherwise it will constitute infringement.