China's Ministry of Finance is preparing to raise 15 billion yuan (US$2.22 billion) through a sovereign bond auction in Hong Kong.

The issuance represents a direct tap of international capital markets, arriving just days after the city introduced a long-awaited financial instrument designed to deepen liquidity in Chinese government debt.

The auction underscores Beijing's strategy to broaden its access to offshore funding while strengthening Hong Kong's position as a financial hub for yuan-denominated assets.

By placing sovereign debt in the city, the Ministry of Finance aims to attract global investors who may face restrictions or higher costs accessing onshore Chinese bonds directly.

This move follows closely on the heels of the Hong Kong Stock Exchange launching five-year Chinese Treasury bond futures.

That derivative, the first yuan-denominated interest rate product on the city's market, addresses a long-standing gap for investors seeking to hedge exposure to Chinese sovereign debt.