In a newly released whitepaper, R3 China has shed light on the often opaque role of brokers within China’s media ecosystem. The report offers a timely examination of how intermediaries operate in the market, outlining the risks their involvement can pose to both advertisers and agencies.
The latest research clarifies who brokers are and are not, explaining why their presence is so “deeply entrenched” in China and how the situation is more complex than it appears. Key objectives of the whitepaper include clarifying brokers' functions in media transactions, identifying systemic vulnerabilities tied to systems using brokers, and proposing concrete strategies for brands to enhance transparency and safeguard media investments.
The concept of using media brokers can be traced back to the early 2000s, when television stations and out-of-home (OOH) owners began outsourcing their ad sales, and this later expanded into the digital realm through smart devices.
Brokers play a crucial role in bridging the cash-flow gap created by mismatched payment cycles. Publishers typically demand payment within 60 to 90 days, while marketers pay agencies in 120 to 180 days. This mechanism helps maintain liquidity for agencies. Brokers also aggregate the buying power of low-volume media, enabling them to secure better deals than individual agencies could achieve.
The whitepaper posits that agency commissions and retainers account for about 1 to 5% of media spend. Most media sales profits, however, derive from publisher rebates, which range from 5 to 25%. But further inflation of media prices can occur if brokers inflate reported revenues to drive growth and increase margins by charging facilitation fees or reselling inventory.
The consequences of using media brokers, therefore, can involve risks for marketers that include a lack of transparency, reduced rebates, the potential for inflated purchasing prices or rate card markups, along with other issues related to payments and operations, which may lead to campaign disruptions.
The brokers' mechanism in the Chinese media market came to the surface after several former GroupM China employees were arrested in October 2023. Since the Shanghai Economic Crime Investigation Department (ECID) began investigating GroupM China, including through office raids almost two years ago, GroupM has been reviewing controls of its investment teams in China and is working to implement client safeguards.
However, the role of brokers and rebate schemes for media agencies in China was a major topic of debate in court last December and remains so as other investigations emerge.
“The arrests have certainly raised awareness and triggered compliance reviews within both multinational and local advertisers,” R3 noted in a comment to Campaign Asia-Pacific. However, the whitepaper advised caution against assuming that the system is being dismantled.
“Based on our observation, the broker system has not disappeared — and is unlikely to. It is rooted in a long history of market evolution and structural needs. Brokers now tend to operate with more discretion, sometimes embedding themselves deeper within the supply chain.”
The underlying drivers remain: fragmented media inventory, non-standardised pricing, and the enduring importance of local relationship networks. “So while the headlines suggest disruption, in practice it is largely ‘business as usual,’ though with more subtle execution and more comprehensive audits,” R3 says.
As China’s media market continues to grapple with the complexities of broker involvement at the moment and brands face tighter budgets due to economic uncertainties, R3 also proposes pragmatic steps in the whitepaper to improve transparency.
“Full elimination is unrealistic in the short term. But brands should always be fully aware of where, what, and how their money is being spent.”
To that end, the whitepaper outlines several actionable strategies for advertisers seeking greater accountability in their media spending. These include ensuring full disclosure of all third-party vendors, clearly defining the role of brokers in contracts and governance frameworks, and implementing specific, auditable rebate reporting. Beyond these contractual safeguards, proactive negotiation can further enhance the brand's position.
While these measures can help advertisers build more transparent internal systems, R3’s research team cautions that broader market reform will be difficult to achieve without external regulation. “Without strict oversight, achieving market-wide transparency is unlikely. At the industry level, sustainable change will likely require regulatory pressure, especially around tax compliance and rebate disclosure.”
Despite growing scrutiny and calls for reform, brokers remain “ingrained” in China's media supply chain, according to the whitepaper. “The key takeaway is not to assume the broker issue will resolve itself,” R3 cautions.
The whitepaper concludes that since brokers are unlikely to disappear from China's media market, emphasis should be on “containing their risks while maximising cost benefits“, keeping the following tips in mind:
- Acknowledge brokers as a market reality, not an anomaly: design governance frameworks accordingly.
- Protect data and learning: avoid allowing broker-led buys to become “black boxes” where performance metrics and cost transparency are lost.
- Use brokers tactically, not strategically: avoid embedding them in core media planning.
- Prioritise transparency KPIs: set contractual requirements with agencies to ensure maximising spend traceability, regardless of broker involvement.

