About China National Knowledge Infrastructure

China National Knowledge Infrastructure

China National Knowledge Infrastructure, universally known as CNKI, is China's largest full-text academic information platform. Launched in 1996 as a national knowledge-infrastructure project led by Tsinghua University with Tsinghua Tongfang, it grew into the dominant gateway through which Chinese scholars and students access academic papers, holding — according to China's antitrust regulator — more than 95 percent of formally published Chinese academic papers and accounting for nearly 70 percent of the total revenue of all Chinese academic data providers in 2021. Its dominance also made it a landmark regulatory case: in December 2022 the State Administration for Market Regulation fined CNKI 87.6 million yuan for abusing its dominant market position.

Origins as a national project

CNKI was initiated in the late 1990s under Tsinghua University's commercial arm, Tsinghua Tongfang, as a service for Chinese universities and research institutions, with approvals and support from the ministries of education and science, the propaganda department and the press and publication administration. Its name reflected that founding ambition: a national knowledge infrastructure for China's research system, at a moment when internet use was just taking off in the country. The platform is operated by Beijing-based Tongfang Knowledge Network Technology, within the Tsinghua Tongfang group — a for-profit corporation owned by a publicly listed company, a fact that later sat uneasily with the public-service connotations of the word 'national' in its name.

From CD-ROM to the integrated knowledge system

CNKI's predecessor, China Academic Journals CD-ROM, appeared in January 1997 as China's first regularly published academic journal search system, distributed on optical discs at a time when campus networks were limited. Online databases followed from 1999, and the service expanded into the China Integrated Knowledge Resources System: a linked collection covering academic journals — more than 8,000 titles — doctoral and master's dissertations, conference proceedings, newspapers, yearbooks, patents, standards and reference works. That breadth, combined with the depth of its journal backfiles, made CNKI the default starting point for literature searches across Chinese academia, used by over 90 percent of college students and scholars in preparing essays and papers, according to the antitrust investigation.

Scale and market position

By the early 2020s CNKI's scale was without parallel in its market. The regulator's investigation found it held over 95 percent of published Chinese academic papers, covered about 90 percent of the country's universities, and accounted for more than 76 percent of full-text downloads of Chinese academic papers since 2014; downloads rose from 769 million in 2014 to 1.74 billion in 2021. The platform reported main-business income of 1.168 billion yuan in 2020 at a gross margin near 54 percent, and its 2021 domestic revenue was 1.75 billion yuan, the figure from which its antitrust fine was calculated. Its market concentration, measured by the Herfindahl-Hirschman Index, reached 5,488 points in the regulator's assessment — a level the regulator compared with the concentration found in major platform markets.

The business model and its critics

CNKI's model resembled that of the large Western academic publishers: it collected published academic resources by signing agreements with journals, publishers and universities — frequently exclusive agreements, often for little monetary consideration to authors — and then sold database access back to universities, institutions and individuals by subscription. Critics focused on both ends of that model. Authors and universities objected to exclusivity and to the use of their work; subscribing institutions objected to price. The regulator found that database fees had risen at an average annual rate of over 10 percent since 2014, with increases over 30 percent for certain clients, achieved both through direct price rises and through indirect increases from splitting databases into smaller separately charged units.

The Zhao Dexin copyright case

The author side of the model produced a landmark lawsuit. Retired professor Zhao Dexin sued CNKI over the unauthorised use of his academic papers, and won: the case resulted in damages of more than 700,000 yuan and wide public attention, because it dramatised a grievance felt by many academics — that their published work had been digitised and sold by the platform without their permission or payment. The judgment became a standard reference in Chinese discussion of the rights of authors within the academic database system, and of the tension between CNKI's commercial operation and its origins as a national infrastructure project.

The Chinese Academy of Sciences suspension

The pricing dispute came to a head in April 2022, when institutes of the Chinese Academy of Sciences (CAS), the country's top natural-science research institution, announced they would suspend use of CNKI because of its hefty annual fees. A notice from the Academy's National Science Library said CAS had spent about 10 million yuan on its CNKI subscription in 2021, that CNKI had insisted on a renewal fee of nearly 10 million yuan with tough conditions, and that access had been suspended from 8 April. The National Science Library planned to adopt a combination of Wanfang Data and CQVIP to maintain access to Chinese literature. At least six Chinese universities had previously suspended CNKI over substantial fee increases in the preceding decade, but the defection of the national academy turned a procurement dispute into a national story — and, within weeks, a regulatory case.

Antitrust investigation and the 87.6 million yuan fine

The State Administration for Market Regulation (SAMR) launched an antitrust investigation in May 2022. After a seven-month investigation, on 26 December 2022 it fined CNKI 87.6 million yuan — 5 percent of its 2021 domestic sales — for monopolistic behaviour. SAMR found two abuses: selling database services at unfairly high prices through continuous, large increases, and restricting competition through exclusive cooperation agreements that prohibited academic journal publishers and universities from authorising any other third party to use academic journals, dissertations and other papers, enforced through rewards and penalties. The regulator concluded that this conduct had impeded competition in China's academic database market, infringed the legitimate rights of users, and affected innovation and academic exchange. A separate cybersecurity review by the Cyberspace Administration of China, launched in June 2022 on the grounds that CNKI held large amounts of personal information and important data covering areas including national defence, telecommunications and finance, proceeded in parallel.

Rectification

CNKI said it would 'accept sincerely and obey resolutely' the penalty, and announced 15 rectification measures. They included ending exclusive agreements with universities and publishers, substantially lowering service prices — with a commitment to cut database subscription fees by more than 30 percent over three years — protecting authors' legitimate rights, and strengthening compliance and risk management. CNKI was urged to implement the overhaul plan and eliminate the consequences of its violations. Commentators described the case as part of China's normalised anti-monopoly enforcement and predicted it would promote the freer flow of academic resources and reduce the cost of knowledge acquisition.

CNKI in China's academic ecosystem

CNKI remains the largest of China's three major academic databases, ahead of Wanfang Data and CQVIP, and the platform through which the majority of Chinese scholars and students still access academic papers. The events of 2022 changed the terms on which it operates — exclusivity ended, prices committed downward, authors' rights formally recognised — without displacing it from the centre of Chinese research infrastructure. Its history, from a Tsinghua-led national project distributing journals on CD-ROM in 1997 to a billion-yuan subscription business sanctioned for monopoly abuse, is the central case study in the commercialisation of academic knowledge in China.