China’s central bank to sell 60 billion yuan in bills through Hong Kong on September 23

The People’s Bank of China is preparing to issue 60 billion yuan in central bank bills through Hong Kong’s Central Moneymarkets Unit on September 23. That’s roughly $8.4 billion worth of 182-day paper, and it’s part of a playbook Beijing has been running since 2018 to manage the offshore yuan market from a distance.

What the PBOC is actually doing

When the PBOC sells these bills in Hong Kong, it effectively soaks up offshore yuan, tightening the supply of renminbi circulating outside mainland China, which tends to support the currency’s value and reduce volatility in the CNH market.

Past issuances of similar size have been oversubscribed, meaning demand has consistently exceeded supply. Interest rates on recent offerings have landed between 1.29% and 1.48% through competitive tenders. Similar bill issuances took place in January 2025 and March 2026, establishing a regular cadence that market participants have come to expect and plan around.

Hong Kong’s expanding role in yuan internationalization

This issuance is part of a broader collaboration between the PBOC and the Hong Kong Monetary Authority to deepen the offshore yuan market. Offshore RMB lending in Hong Kong reached 935 billion yuan in 2025. Dim sum bonds, which are yuan-denominated bonds issued outside mainland China, have surpassed 1 trillion yuan in annual issuance.

Each new bill offering adds another data point to the offshore yuan yield curve, giving investors and traders better pricing signals across different maturities.

Why this matters for global markets

When the PBOC issues bills offshore, it tightens CNH supply, which can widen the spread between the onshore yuan (CNY) and its offshore counterpart. Currency traders monitor these spreads for signals about Beijing’s tolerance for yuan depreciation or appreciation.

The oversubscription patterns in previous offerings suggest that appetite for these products extends well beyond Chinese institutions, with international banks and sovereign wealth funds participating actively. The competitive pricing in the 1.29% to 1.48% range reflects a deliberate choice by the PBOC, balancing its liquidity management objectives with market demand.

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