The Butterworths Hong Kong Competition Law Handbook - Fourth Edition is a detailed work of reference concerning the Competition Ordinance (Cap 619). This title reproduces the text of the Ordinance along with section-by section annotations, which include key definitions of words and phrases, discussion on practical aspects and contentious issues, cross-jurisdictional comparisons with similar territories, and other authoritative material. This edition has incorporated the judgments handed down by the Competition Tribunal since 2023, including various judgments in respect of Competition Commission v ATAL Building Services Engineering Ltd & Ors (CTEA 2/2022 & CTEA 2/2023) and Competition Commission v Gray Line Tours of Hong Kong Ltd & Ors (CTEA 1/2022).