Suppliers of the price comparison announcement in the electronic store of Heilongjiang Provincial Government Procurement Network must enter the electronic store. According to the relevant public information, in order to standardize the government procurement transactions of electronic stores in Heilongjiang Province, improve the convenience and efficiency of government procurement, and optimize the business environment of government procurement in Heilongjiang Province, all parties involved in government procurement of electronic stores, including state organs, institutions and organizations that use financial funds to purchase goods and install necessary supporting services through electronic stores, as well as suppliers that sell goods and provide necessary services such as installation through electronic stores, carry out government procurement activities through electronic stores.