Dacheng Ningbo Office formerly known as Jonsum Law Firm , was founded in 1995, and merged into Dacheng Law Offices together with Zhejiang Flower & May Law Firm and Zhejiang Maritime Law Firm in 2012. It is the first internationally renowned legal service agency settled in Ningbo, now has 3,200 square meters of high-end office space with advanced office facilities located in the International Financial Center of the New Eastern District of Ningbo City.Currently, there are 158 employees working at Dacheng Ningbo Office, including 126 practising lawyers, more than half of whom hold master's/doctoral degrees, and many of whom hold social positions and serve as deputies to the People's Congress, members of the Chinese People's Political Consultative Conference, arbitrators of arbitration institutions and members of the Bar Association.

Beijing Dacheng Law Offices, LLP (Ningbo), which is client-oriented, adheres to its operational mode of teamwork and specialization, provides excellent service in accordance with the features of legal fields and industies, with 11 specialised divisions in Housing Construction and Energy, Corporate, M&A and Restructuring, Compliance and Risk Control, Finance, Cross-border Investment and Trade, Labour and Human Resources, Insolvency, Restructuring and Liquidation, Criminal, Dispute Resolution, Intellectual Property and Science and Technology Innovation, and Capital Market, as well as 9 industrial groups in Real Estate, Engineering and Infrastructure, Public Services, Finance, Technology Media and Communications (TMT), Energy, Natural Resources and Environment, Consumer and Leisure, Manufacturing, and Capital Market.