Companies suitable for case analysis include but are not limited to the following categories:

Well-known multinational companies, such as Apple, Google, and Amazon; industry-leading companies, such as Huawei, Tesla, and Alibaba;

Innovative companies, such as Xiaomi, Tencent, and ByteDance;

Enterprises in transformation from traditional industries, such as IKEA, Starbucks, and Disney; social enterprises, such as Microsoft and Google's non-profit sector; and start-ups, such as Uber, Airbnb, and Didi Chuxing. These companies have a certain degree of representativeness and influence in market competition. Through their case analysis, we can gain an in-depth understanding of the successful experiences and challenges in terms of corporate strategy, operating model, and innovation capabilities.

Companies suitable for case analysis include five listed companies, namely, Angang Steel, Baosteel, Gree Electric, Hisense, and Suning. Auditors evaluate the soundness, rationality, and effectiveness of internal control by analyzing unstructured data such as the audited unit departments, company rules and regulations, and internal control evaluation data, in order to decide whether to rely on internal control, assess the level of control risk, and determine the nature, scope, time, and focus of substantive testing. I hope my answer is helpful to you.

At present, there are many companies that have analyzed corporate strategic management cases, such as Haier, Vanke, Lenovo, and Peking University Founder.