Offshore renminbi

The offshore renminbi (commonly abbreviated CNH) refers to Chinese yuan held and exchanged in markets beyond mainland China's capital controls. It exists because the onshore yuan (CNY) is not fully convertible: the People's Bank of China (PBOC) manages the onshore rate within a daily trading band around a central parity fix, while offshore yuan trades more freely against supply and demand in jurisdictions such as Hong Kong, Singapore, London, and Taipei.

Hong Kong became the first and largest offshore RMB hub after the 2010 expansion of a clearing arrangement between the PBOC and the Hong Kong Monetary Authority, which allowed corporates to hold RMB deposits and issue RMB-denominated bonds (so-called "dim sum bonds"). Subsequent clearing banks were designated in other financial centers, and CIPS (the Cross-Border Interbank Payment System), launched in 2015, expanded settlement infrastructure.

Key features of the offshore market:

• Two exchange rates: CNH and CNY usually trade close together, but gaps widen during stress, signaling capital-flow pressure. A notable divergence occurred around the August 2015 PBOC devaluation.
• Limited arbitrage: Cross-border RMB movement is constrained by quotas such as RQFII, Bond Connect, and Stock Connect, so the two pools do not fully equalize.
• Policy tool: Beijing has at times intervened in CNH (for instance via state banks borrowing offshore liquidity) to squeeze short-sellers betting against the yuan.

The offshore market matters for internationalization goals: the RMB was added to the IMF's Special Drawing Rights basket in October 2016, and its SDR weight was raised to 12.28% in the 2022 review. However, the RMB's share of global payments tracked by SWIFT has remained modest compared with the dollar and euro, reflecting the tension between Beijing's desire for international currency status and its preference for capital-account control.