Apple has updated the " Availability in Mainland China " in "App Information " and requires apps to have a registration number before they can be put on the App Store in mainland China. This means that most foreign applications will not be available for download in China through the App Store.
Apple said:
The Ministry of Industry and Information Technology of China (MIIT) requires apps to have a valid Internet Information Provider (ICP) registration number. In addition, game apps must obtain an online game publication number. Books, newspapers and magazine apps must hold an "Online Publishing Service License" issued by the National Press and Publication Administration of China (NPPA). Apps containing religious content must hold an "Internet Religious Information Service License" issued by China's National Religious Affairs Administration (NRAA). News Apps must hold an "Internet News Information Service License" issued by the Cyberspace Administration of China (CAC). If you have or plan to provide the above types of apps in the App Store in mainland China, you must provide relevant information and supporting documents. If the App meets the above conditions, please fill in the ICP filing information in the corresponding position on the "App Information" page. To facilitate Apple's verification of your online game publication number, please upload the game's ISBN (International Standard Book Number) issuance or approval document, as well as a copy of the latest business license. In addition, you can also upload the licensing agreement of the corresponding operating unit. To facilitate Apple's verification of your publishing license, please upload the "Online Publishing Service License" or other relevant licenses issued by the National Press and Publication Administration of China, the publishing license authorization letter provided by the licensor, business license, ICP license or similar supporting documents . To facilitate Apple's verification of your Internet Religious Information Service License, please upload the "Internet Religious Information Service License", the license authorization letter provided by the licensor, business license, ICP license or similar supporting documents. To facilitate Apple's verification of your Internet news information service license, please upload the "Internet News Information Service License", the license authorization letter provided by the licensor, business license, ICP license or similar supporting documents.
https://developer.apple.com/cn/help/app-store-connect/reference/app-information/