Trademarks in the preliminary announcement period can be authorized for use, but there are certain risks. If the trademark is opposed and ultimately denied registration, the trademark you use may be suspected of infringing on the trademark rights of others. Legal basis: Article 1 of the "Tendering and Bidding Law of the People's Republic of China" is to regulate bidding activities, protect national interests, social public interests and the legitimate rights and interests of parties involved in bidding activities, improve economic benefits, and ensure project quality. , enact this law. Article 2 This Law shall apply to bidding activities conducted within the territory of the People's Republic of China. Article 3 The following engineering construction projects within the territory of the People's Republic of China, including the survey, design, construction, supervision of the project and the procurement of important equipment and materials related to the engineering construction, must be subject to bidding: (1) Large-scale foundation Facilities, public utilities and other projects related to social public interests and public safety; (2) Projects that use state-owned capital investment or state financing in whole or in part; (3) Projects that use loans and aid funds from international organizations or foreign governments. The specific scope and scale standards of the projects listed in the preceding paragraph shall be formulated by the development planning department of the State Council in conjunction with relevant departments of the State Council and submitted to the State Council for approval. If the law or the State Council has regulations on the scope of other projects that require bidding, those regulations shall prevail.