How to mark the establishment date and registration information in the Organization Schema?

When it is necessary to mark the establishment date and registration information of an enterprise in the Organization Schema, structured data marking can be achieved through specific properties. The establishment date uses the "foundingDate" property, which should adopt the ISO 8601 format (e.g., "2020-01-15"); registration information is marked through properties such as "legalName" (legal name), "taxID" (tax registration number), "vatID" (value-added tax ID), and "address" (registered address, nested PostalAddress type). Specific application: - Establishment date: "foundingDate": "2010-05-20" (directly fill in the specific date of enterprise registration and establishment) - Registration information: "legalName": "XX Technology Co., Ltd.", "taxID": "91110108XXXXXXXXXX", "address": {"@type": "PostalAddress", "streetAddress": "No. XX, XX Road, Haidian District", "addressLocality": "Beijing"} It is recommended to embed it into the web page in JSON-LD format first and ensure that the information is consistent with the content of the enterprise business license. After completion, the format correctness can be checked through the Schema validation tool to improve the accuracy of search engines' understanding of enterprise information.