Report: China accounted for 23% of cross-border data flows in 2019, nearly twice the share of the US, which ranked second with 12%, followed by the UK and India
Asian ‘data sphere’ gives the country twice the information flows of the US — People view laptop computers from Chinese tech firm Huawei at an expo in Beijing.
Context & Ripple Effects
This 2019 snapshot matters because it predates the decoupling wave that dominates the rest of the coverage: at the time, China was already the world's largest node in cross-border data flows at 23% — nearly double the US's 12% — with the UK and India forming a second tier. That digital gravity sat alongside an expanding physical footprint, including Huawei supplying AI surveillance technology to 50 countries, far ahead of Hikvision.
The later coverage shows how the picture inverted on the hardware side even as the data-side lead held: by 2025 the US had overtaken China as Taiwan's top export destination for the first time since 1999, while Hong Kong's record 50%+ share of China's $239B chip imports signals rerouted rather than reduced semiconductor dependence.
First-order effects
- China's position as the largest single origin of cross-border data gives Beijing outsized leverage over any regime governing where data can move — any localization or transfer rule it sets immediately reshapes the largest flow channel in the system.
- The US, UK, and India, as the next-largest nodes, are the counterparties most exposed to rules made around China's flow patterns, since their own traffic volumes depend on routes transiting Chinese platforms and infrastructure.
Second-order effects
- Hardware trade is decoupling faster than data flows: US ITC data showing China still supplying 66–86% of US imports across consoles, monitors, smartphones, batteries, and laptops in 2024 sits awkwardly against the data-sphere numbers, forcing policymakers to treat digital and physical interdependence as separate problems.
- Rerouting is already visible in the chip channel — Hong Kong's rise from roughly a third to over half of China's chip imports suggests intermediaries absorbing flows that direct channels no longer carry, a pattern that would extend to data if similar pressure applies.
Third-order effects
- If the pattern holds, the world splits into an Asian-centered data sphere layered over increasingly fragmented physical supply chains — meaning control points shift from who owns the factories to who governs the flows between them.
- Surveillance-technology exports like Huawei's give the data-sphere lead a governance dimension: countries buying Chinese AI monitoring infrastructure are more likely to align their data rules with Beijing's, hardening the bloc structure over time.
The trend: Digital gravity is consolidating around China and Asia even as the physical supply chains beneath it fragment, making data-flow governance the next arena after chips.