Sigma Law Firm was established in 2012, specializing in financial sectors such as banking, securities, insurance, and insurance investment. Additionally, the firm offers a wide range of legal services to both domestic and international clients, including funds, trusts, guarantees, and non-performing asset disposal. The legal team possesses a profound understanding and grasp of the laws, regulations, transaction rules, and conventions applicable in the domestic and international financial investment fields. They boast significant professional experience and a strong track record in providing legal services to various entities, including banks, trust investment companies, asset management companies, insurance companies, and other relevant entities.

The law firm has entered into a deep collaboration with Sigma Group. Sigma Group is a comprehensive professional services conglomerate established on the foundation of Sigma Certified Public Accountants (one of the earliest eight nationally established accounting firms). The group encompasses six major business segments: financial auditing, management consulting, engineering consulting, asset assessment, legal services, and asset management. It operates on an integrated model of 'strategic management, resource sharing, and cross-segment collaboration,' adhering to diversified, intensive, and scaled development to continually enhance the group's service capabilities and core competencies, striving to create an outstanding brand in the professional services domain.

Director Zhang Yangqiu, the head of the law firm, demonstrates ingenuity and creativity. The symbol '∑' for Sigma in ancient Greek signifies 'seeking harmony,' emphasizing external integration and an internal culture of unity and cooperation. The operational philosophy of the law firm is 'Act with harmony, let the law be just and efficient.'

Sigma Law Firm has assembled a highly educated, experienced, and professionally adept team of legal experts. Currently, there are over 50 individuals, including partners, full-time lawyers, and administrative staff. The practicing lawyers have graduated from reputable law schools such as the 'Five Academies and Four Departments,' with many having international educational backgrounds. Two-thirds of the lawyers have more than ten years of professional experience and have been deeply involved in legal services for an extended period.

The people of Sigma continually enhance their comprehensive abilities, refine their professional knowledge, and consistently develop improved service methodologies. Internally, we enable members to pursue their dreams and aspirations, and externally, we provide clients with comprehensive and precise legal services, contributing consistently to the advancement of the rule of law.