Beijing Information Port is involved in various sectors related to information technology and services.

Beijing Yichi Precision Instrument Co., Ltd. is a professional Zeiss CMM agent. The company mainly sells Zeiss CMMs, Zeiss spectrum CMMs, Zeiss image measuring instruments, Zeiss industrial microscopes, Zeiss industrial CTs, Zeiss scanning electron microscopes, and Zeiss X-rays. Inspection, blue light scanners, gantry measuring machines, three-dimensional laser scanners, etc., the products are sold well in Beijing, Tianjin, Xi'an, Dalian, Shenyang, Changchun, Hebei, Henan, Shandong and other parts of the country.

China Food Network - China Food Network is the most authoritative food economy and food quality comprehensive information portal in China. It publishes the latest food information every day. The website content covers all kinds of food information, including all kinds of food safety, various imported foods, organic foods, health foods, frozen foods, green foods, junk foods, genetically modified foods, food investment, etc. We are willing to become a timely, authoritative and reliable food information media website for consumers.

Jiangnan Sports (China) Official Website - JN SPORTS [彩ి] is Asia's top online game operator, Jiangnan Sports web version, Jiangnan Sports app platform, Jiangnan Sports official website, Jiangnan Sports app download, Jiangnan Sports official website app download, Jiangnan Sports login platform for sports and e-sports enthusiasts all over the world. The platform supports Web, H5, and iOS. It is the best online game operator in Asia.

Beijing Yili Food Group Co., Ltd. official website

乐发Vll是一家致力于为用户提供高品质商品的在线购物平台，涵盖服装配饰、家居生活、数码电器等多个品类，为您打造舒适便捷的购物体验。我们致力于为用户带来最新最热的潮流单品，让您轻松畅享时尚生活。

Beijing Imperial Academy of Painting and Calligraphy. Mainly engaged in humanities and history research, adult and youth art examinations, cultural and artistic competitions and activities organization and participation, China Imperial Academy cultural and historical heritage and research, exhibitions, seminars, painting and calligraphy creation, music creation, art protection, cultural group management and foreign cooperation and other matters.

Health Care Medical Research and Practice is a journal of preventive medicine and hygiene, sponsored by Southwest University, with domestic unified serial number: 50-1184/R, international standard serial number: 1673-873X, published bimonthly, and distributed to domestic and foreign audiences.

Beijing Zijin Tonghai Technology Co., Ltd. (zijin technology) is a high-tech company engaged in the research, development, sales and technical services of all-in-one card systems, biometric technology systems, security technology and other related products. The company was established in 2004 in Beijing's Zhongguancun High-tech Enterprise Zone. It is one of the earliest companies in the domestic weak current industry to combine all-in-one card systems with energy-saving products. The company's products are sold all over the country and exported to Southeast Asia. The company is currently headquartered in the Zhongguancun high-tech enterprise cluster in Beijing, and has offices in Tianjin, Shenyang, Wuhan and other places. A product technical service point was established.

The company specializes in the production and distribution of standard solutions for colorimetric analysis and turbidity standards.