Legal basis: Article 6 of the Regulations on Administration for Industry and Commerce includes: (1) Handling the preliminary registration, annual inspection and replacement procedures of enterprises registered and managed by the district and county industrial and commercial bureaus within their jurisdiction, and supervising and managing the enterprises approved and registered by the district and county industrial and commercial bureaus; (two) to manage the markets within their respective jurisdictions and supervise the trade and economic activities of the markets; (three) to supervise and inspect the conclusion and performance of economic contracts within the jurisdiction, and to mediate disputes over economic contracts; (4) Accepting, examining and reporting the applications for opening, changing and closing of individual industrial and commercial households within its jurisdiction, and supervising and managing the production and business activities of individual industrial and commercial households; (five) to guide enterprises, institutions and individual industrial and commercial households within their jurisdiction to apply for trademark registration correctly, and to supervise and manage their use of trademarks; (six) to supervise and manage the advertisements set up and posted within the jurisdiction; (seven) according to the provisions of the collection and payment of various industrial and commercial charges and fines; (eight) to publicize the laws, regulations and relevant policies on industrial and commercial administration; (nine) other administrative duties for industry and commerce as prescribed by laws and regulations.