China’s Anti-Monopoly Law (AML) has been in force for over six and half years. This article argues that there has been a gradual yet perceptible change in the quality and intensity of AML enforcement over the years, with the fifth anniversary of the AML’s effectiveness as the somewhat arbitrary ‘turning point’. Indeed, over the past few years, the normative work—in terms of drafting AML implementing rules and guidance—of the three antitrust authorities has decreased, while the handling of actual enforcement cases has increased. Moreover, the cases investigated have become more high profile: the investigation by the National Development and Reform Commission against Qualcomm, the action by the State Administration for Industry and Commerce against Microsoft, and the prohibition by the Ministry of Commerce of the P3 transaction symbolize this trend. I . INTRODUCTION China’s Anti-Monopoly Law (AML) has been in force for over six and half years. In August 2013, the AML’s five-year anniversary since its foundation was celebrated. In a way, the AML’s fifth anniversary marked a qualitative change in the implementation and enforcement of the AML—the initial phase of laying the groundwork for antitrust enforcement had come to an end. If we were to use merger control jargon, we would say that AML enforcement entered into ‘phase 2’. In this article, we will summarily examine the AML’s history during its first five years of operation, briefly go through the most recent developments, and describe existing achievements and challenges. We will do so by looking at each of the three antitrust agencies with AML enforcement powers, as well as the courts, separately. When the AML was enacted in August 2007, the law provided for an unidentified ‘anti-monopoly enforcement authority’ (or authorities) under the State Council to be in charge of the enforcement work. Shortly after the law came into force a year * Xiaoye Wang, Distinguished Professor of Law at Hunan University and the Chinese Academy of Social Sciences, and Member of the Consultative Expert Panel of the Anti-Monopoly Commission under the State Council of the People’s Republic of China. Email: wangxiaoye88@live.cn † Adrian Emch, Partner at Hogan Lovells in Beijing, and lecturer at Peking University. Email: adrian.emch@hoganlovells.com. The author would like to thank LYU Qing and CONG Shan for their help in preparing this article. 1 Anti-Monopoly Law of the People’s Republic of China [2007] Presidential Order No 68, 30 August 2007. 2 Maureen K Ohlhausen, ‘Illuminating the Story of China’s Anti-monopoly Law’ [2013] Antitrust Source 12.