This book presents the essential knowledge and legal practice for establishing and operating companies in China. The book includes 6 chapters: Establishment of a Company; Shareholders, Directors, Supervisors, Senior Executives; Investment, M&A and Creditor's Rights; Financing and Guarantee; Alteration, Liquidation and Cancellation; Malfeasance Most Likely to be Overlooked. The end is a summary of the laws and regulations involved in the chapters above. From a professional perspective, this book explains and analyzes the key points, practical difficulties and potential risks that an enterprise may encounter in the process of establishment and operation, describes in detail the key points for handling various businesses and matters, the notes for selection of different administrative procedures, and conducts multi-dimensional comparison and case analysis to facilitate readers' understanding. This book is a practical guide for everyone to understand how to establish and operate a company in China, which is not only suitable for readers who want to start a business or have already started a business, but also suitable for overseas investors to fully understand how to establish and operate a company in China. It is also helpful for investors and entrepreneurs to lead the enterprise to be more standardized and more compliant so as to achieve better operation and development. In addition, this book could be used as a reference book for legal and financial professionals to help professionals become more professional.