1, first enter the WeChat app and add a sign in the upper right corner of the store.

2. Search the official account of ETC assistant WeChat.

3. Open the ETC assistant and select ETC invoicing in the service. Shanghai, referred to as "Shanghai" or "Shen" for short, is a provincial administrative region, municipality directly under the Central Government, national central city, megacity and core city of Shanghai metropolitan area in People's Republic of China (PRC), and is an international economic, financial, trade, shipping and scientific and technological innovation center of China approved by the State Council.