张建民任国家数据局副局长，此前系国家发改委投资司司长

Group 1 - The core point of the article is the appointment of Zhang Jianmin as the Deputy Director of the National Data Bureau, which is part of the restructuring of the bureau's leadership [1] - The National Data Bureau was officially established on October 25, 2023, and is managed by the National Development and Reform Commission, focusing on data resource integration and the development of digital economy and society [1] - The leadership structure of the National Data Bureau now consists of one director and four deputy directors, with Liu Liehong as the director and Zhang Jianmin among the deputy directors [1] Group 2 - The National Data Work Conference held on December 29-30, 2025, emphasized the importance of facilitating data flow and resource allocation to enhance the data market and promote economic development [2] - The conference outlined eight key tasks for 2026, including the integration of data technology innovation with industry innovation and the promotion of digital industry clusters [2] - Six special actions were proposed to enhance data's role in artificial intelligence development, focusing on foundational expansion, application empowerment, quality improvement, management services, value release, and annotation challenges [2]