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2026 is a landmark year for sports, headlined by major global, regional, and national events. The period surrounding these events presents a prime opportunity for brand activations and advertising, particularly for official sponsors. Brands without official sponsorship arrangements, however, face potential legal exposure in relation to ambush marketing, known in Mainland China as 搭便车营销 (“free-riding marketing”). This article examines the legal landscape governing ambush marketing in Hong Kong and Mainland China, including key statutory frameworks under intellectual property laws and the Anti-Unfair Competition Law (“AUCL”), recent enforcement trends in the film, digital platform, and AI-driven marketing sectors, and practical considerations for rights holders and businesses operating across Greater China.
Official sponsors typically invest significant cash and in-kind support to fund sports events, in exchange for certain commercial rights. These commercial rights may include naming rights (e.g. Official Partner), branding and signage rights around the event area and merchandising or co-branding opportunities. Official sponsors are often granted exclusivity in a specific category so that there is only one brand sponsor in each industry category (e.g. beer, credit card, airline). With the global reach of major sports events though broadcasting and the internet, official sponsors gain significant cross-border market exposure through sponsorship arrangements.
At the same time, for brands that are not official sponsors, there are lurking risks around ambush marketing. We break down below what is meant by “ambush marketing”, and discuss the legal landscape around such issues in Hong Kong and Mainland China.
There is no official definition or concept of ambush marketing in Hong Kong or Mainland China. Generally, ambush marketing is a branding strategy executed with the aim of associating a company (directly or indirectly) with a particular event or venue without an official sponsorship relationship with the event organiser or venue. It is often seen in popular sports events where non-sponsoring brands “ambushed” the sponsoring brands by certain marketing events that “steal the thunder” of the sponsoring brands.
Ambush marketing activities could range from advertisements directly naming the event or using event signage to social media interactions with certain hashtags. These activities may create an impression of association whilst riding on the buzz created by a particular event.
In addition to ambush marketing by association, ambush marketing can also take place by intrusion. This happens when a brand that is not an official sponsor advertises at or in the vicinity of the event venue. This could, for example, involve hiring “flashmobs” to wear clothing associated with the brand at the event, distributing free product samples around the event area or buying and posting advertisements at the nearby train station.
Hong Kong does not have any specific legislation on ambush marketing, nor has there been any reported court case on this issue. In Hong Kong, ambush marketing does not automatically pose legal risk, and the facts of each case will need to be analysed under existing laws (in particular, intellectual property laws).
For ambush marketing to be considered risky in Hong Kong, it would typically need to constitute one or more of the following:
On the other hand, comparative advertising may potentially be a defence to trade mark infringement. The Trade Marks Ordinance permits a trader to use a third party’s registered trade mark for the purpose of identifying goods/services of that company, provided that the use of the trade mark is “in accordance with honest practices in industrial or commercial matters”. Whether and to what extent this defence is applicable involves a fact-sensitive analysis.
Three elements need to be established for a claim in passing off, namely: (a) the plaintiff enjoys goodwill in its goods or services; (b) the defendant has made a representation that misleads or is likely to mislead the public into believing that its goods or services are those of, or connected with the plaintiff; and (c) the plaintiff has suffered or is likely to suffer damage as a result of the misrepresentation. As an action based on passing off is not predicated upon the use of a third party trade mark, this is often a common cause of action against ambush marketers associating themselves with an event.
In the context of major sporting events, the Beijing 2008 Olympics illustrated the ambush marketing risk when a sportswear brand whose namesake founder lit the Olympic flame, despite not being an official sponsor, was incorrectly identified by consumers as an official sponsor.
However, similar to Hong Kong, Mainland China does not currently have specific legislation targeting ambush marketing. The legal risk of the non-sponsoring party is mainly generated by IP infringement, free-riding and violating of the general principle of good faith and market fairness, which are primarily regulated under the Trademark, Copyright and Patent Laws, the Anti-Unfair Competition Law (“AUCL”) and the Advertising Law, supplemented by other related laws and administrative regulations.
Similar to Hong Kong, unauthorised use of a registered trademark, logo, design or of copyrighted materials of the event or the exclusive sponsor may constitute infringement under the Trademark Law, Copyright Law or Patent Law (for design patents in particular).
In addition to that, it is worth mentioning that China has issued special regulations protecting the name, logo, mascot etc., of special events, including
The unauthorised commercial use of the protected items under the above regulations is subject to civil liability, administrative liability and even criminal liabilities.
On the trademark prosecution front, an interesting illustration of the above legislation was that in connection with the Beijing 2022 Winter Olympics and Paralympics, the China National Intellectual Property Administration (CNIPA) proactively rejected no less than 1,270 trademark applications, including those for mascot names such as “Bing Dwen Dwen” (冰墩墩) and athlete names such as “Gu Ailing” (谷爱凌), and also declared 43 registered marks invalid.
The AUCL is another major law prohibiting activities of “free-riding” or “reaping without sowing” providing protection of a broader scope of rights, such as trade name, domain name, trade dress, etc. for the purpose of fair competition.
As between the legal landscapes in Hong Kong and Mainland China, Mainland China has more layers of legislation and regulations which touch on various aspects of this topic, especially regulations for the protection of special symbols for national and international events. In particular, on the one hand the AUCL’s clauses grant Mainland courts greater flexibility to address novel forms of competitive misconduct (especially internet activities), and on the other hand, the CNIPA’s power to reject bad-faith trade mark applications upon filing provides an additional layer of proactive enforcement.
Authored by PJ Kaur, Stefaan Meuwissen, Grace Guo and Eugene Low.