according to article 53 of the trademark law, producers and business operators use the word "well-known trademark" on commodities, commodity packages or containers in violation of regulations, or in advertising, exhibitions and other commercial activities. The local administrative department for industry and commerce shall be responsible for making corrections and impose a fine of 1, yuan. The provisions of the Trademark Law: Article 14 A well-known trademark shall be recognized as a fact that needs to be recognized in handling trademark cases at the request of the parties concerned. The following factors should be considered when identifying a well-known trademark: (1) the awareness of the trademark by the relevant public; (2) the duration of the use of the trademark; (3) the duration, degree and geographical scope of any publicity work of the trademark; (4) The record that the trademark is protected as a well-known trademark; (5) Other factors that make the trademark famous. In the process of trademark registration examination and investigation of trademark violation cases by the administrative department for industry and commerce, if the parties claim their rights in accordance with the provisions of Article 13 of this Law, the Trademark Office may, according to the needs of examination and handling of the case, make a determination on the well-known situation of the trademark. In the process of handling trademark disputes, if the parties claim their rights in accordance with the provisions of Article 13 of this Law, the Trademark Review and Adjudication Board may, according to the needs of handling the case, make a determination on the well-known trademark. In the process of trying trademark civil and administrative cases, if the parties claim their rights in accordance with the provisions of Article 13 of this Law, the people's court designated by the Supreme People's Court may, according to the needs of trying the case, make a determination on the well-known trademark. Producers and business operators shall not use the words "well-known trademarks" in commodities, commodity packages or containers, or in advertising, exhibitions and other commercial activities. Article 53 Anyone who violates the provisions of the fifth paragraph of Article 14 of this Law shall be ordered by the local administrative department for industry and commerce to make corrections and be fined 1, yuan. The above provisions are all about the illegal use of well-known trademarks in China.