Hai Run Tian Rui Law Firm, formerly known as Hairun Law Firm, was founded in 1997 and merged with Tianrui Law Firm in 2017. After more than 20 years of accumulation, great progress has been made, and it has developed rapidly after the merger. In 2020, the overall staff growth rate was over 70%, and the depth and breadth of the law firm's talent pool has been comprehensively strengthened.

Several lawyers were successively elected as members of the M&A and Restructuring Review Committee of listed companies, members of the Issuance Review Committee, and members of the GEM Listing Committee (currently). The comprehensive score in the field of bankruptcy and reorganization is ranked first in the list of bankruptcy administrators of the Beijing Higher People's Court. It is the governing unit of the East Asia Bankruptcy and Reorganization Association. At the same time, the lawyers of this law firm are now the vice president of the Beijing Bankruptcy Administrators Association. In the field of banking and finance, correspondent banking customers have won more than ten cases in the Supreme Court, including "the first case against a bank by a farmer" and two national bulletin cases, contributing to the maintenance of the legal ecological environment of the banking industry.