Single source procurement pre announcement 1. Project information purchaser: Nanjing University of Science and Technology Project name: Nanjing University of Science and Technology Library IEEE Electronic Library (IEL) database Procurement project service budget for 2025-2027: 1360000 yuan Proposed procurement project overview: including project background, purpose, core objectives, specific parameters, etc. The IEEE Electronic Library (IEL) database for this project procurement is provided solely by Institute of Electrical and Electronics Engineers (IEEE) and authorized for sale by Beijing Zhongke Import and Export Co., Ltd. The IEL database is the most complete online data resource under IEEE, providing nearly one-third of the global literature in fields such as electrical, electronics, communications, and computer science. Its collection of journals, magazines, conference proceedings, and standards exceeds 6 million articles. Nanjing University of Science and Technology has been subscribing to this database for several consecutive years, making it one of the most frequently used foreign language full-text databases by our readers. 2、 Reasons and explanation for adopting the single source procurement method: According to Article 31 of the Government Procurement Law, "Goods or services that meet one of the following conditions may be procured through the single source procurement method in accordance with this Law: (1) can only be procured from a single supplier; (2) cannot be procured from other suppliers due to unforeseeable emergency situations; (3) must ensure the consistency of the original procurement project or meet the requirements of service matching, and need to continue to be purchased from the original supplier, with the total amount of additional funds not exceeding 10% of the original contract procurement amount." The IEEE Electronic Library (IEL) journal full-text database for this project procurement is exclusively provided by the Institute of Electrical and Electronics Engineers (IEEE) and provided by Beijing Zhongke. Import and Export Limited Liability Company is authorized to sell. This database is irreplaceable in terms of content and belongs to a continuous publication in terms of product nature. It must be renewed year by year for continuous use. Nanjing University of Science and Technology has subscribed to this database for several consecutive years, making it one of the most frequently used full-text databases for foreign journals by our readers. The first situation that meets the requirements of Article 31 can only be purchased from a sole supplier. 3、 Proposed supplier information Manufacturer: Institute of Electrical and Electronics Engineers (IEEE) Agent (if any): Beijing Zhongke Import and Export Co., Ltd. Address: Room 801, Building B, 8th Floor, No. 138 Andingmenwai Street, Dongcheng District, Beijing 4. Publicity period: 5 working days 5. Other supplementary matters: 6. Contact information: 1. Contact person of the purchaser: Teacher Zhang Contact address: No. 200 Xiaolingwei, Xuanwu District, Nanjing Contact phone number: 025-84315682. Contact person of the bidding office: Teacher Wu Contact address: No. 200 Xiaolingwei, Xuanwu District, Nanjing Contact phone number: 025-84303870 7 7. Attachment