How to calculate the overdue interest of private lending in the mainland and Hong Kong, and what are the differences between the restrictions on the transfer of corporate equity... On December 15, Shenzhen Qianhai Court issued the White Paper on the Comparison of the Rules for the Transfer of Corporate Equity in the Mainland and Hong Kong, and the White Paper on the Comparison of the Rules for Private Lending in the Mainland and Hong Kong, to carry out a comparative study of cross-border commercial legal rules and further deepen the convergence of cross-border commercial legal rules. At the same time, the meeting released the Work Guidance on Deeply Promoting the Connection of Cross border Commercial Litigation Rules and 8 supporting systems. "The system of cross-border commercial legal rules convergence includes the convergence of procedural rules and substantive rules." Bian Fei, secretary of the Party Leadership Group and president of the Qianhai Court, introduced that the Qianhai Court has formulated eight supporting systems in terms of the connection of litigation rules, including the Guidelines on Deeply Promoting the Connection of Cross border Commercial Litigation Rules and the judicial integrity system, simplifying litigation procedures involving Hong Kong and Macao, expert assistance in identifying extraterritorial laws, and the work of lawyers representing cases in the Guangdong, Hong Kong and Macao Bay Area; In terms of the connection of substantive rules, we started with the most common cases and prepared the White Paper on the Comparison of the Rules of Corporate Equity Transfer between the Mainland and Hong Kong and the White Paper on the Comparison of the Rules of Private Lending between the Mainland and Hong Kong. It is reported that the Qianhai Court has carried out a comparative study of eight types of cross-border commercial legal rules at the same time, and will publish them in the form of white papers one after another, thus gradually forming a full coverage of the convergence of cross-border commercial legal rules. (Liu Xinshe)