Core Viewpoint - The article provides a step-by-step guide on how to verify if a business partner is an A-level taxpayer using the electronic tax bureau app, emphasizing the importance of this verification in business partnerships [1][3][4]. Group 1: Verification Process - Step 1: Log into the electronic tax bureau app, navigate to the "Public Services" section, and select "A-level Taxpayer Inquiry" [1]. - Step 2: Enter the taxpayer identification number or name, select the evaluation year range, complete the verification process, and click "Query" to check if the taxpayer is A-level [3]. - Step 3: If the taxpayer is not A-level, the query result will indicate "The taxpayer was not found in the A-level taxpayer list," and users can click "Re-query" to enter new search criteria [4]. Group 2: Taxpayer Information - The evaluation year for the inquiry is set for 2024, and users must input the taxpayer identification number or name for the search [6]. - The system requires a verification step involving a sliding block to ensure security before proceeding with the query [6].