The International Monetary Fund on Tuesday upgraded its 2023 gross domestic product growth forecast for China to 5.4% from 5%, citing a "strong" post-COVID-19 recovery, but said the fund still expected the Chinese economy to slow next year.

GDP growth could slow to 4.6% in 2024 because of continued weakness in China's property sector and subdued external demand, the IMF said in a press release, albeit better than its October expectation of 4.2% in the IMF's World Economic Outlook (WEO).

The upward revision followed a decision by China to approve a 1 trillion yuan ($137 billion) sovereign bond issue and allow local governments to frontload part of their 2024 bond quotas, in a move to support the economy.

"These projections reflect upward revisions of 0.4 percentage points in both 2023 and 2024 relative to October WEO projections due to a stronger-than-expected third-quarter outturn and recent policy announcements," said IMF's First Deputy Managing Director Gita Gopinath in the statement.

Over the medium term, growth is projected to gradually slow to about 3.5% by 2028 amid headwinds from weak productivity and population aging, according to Gopinath.

China has introduced numerous measures to support the property market, but more is needed to secure a quicker recovery and lower economic costs during the transition, she said.

A comprehensive policy package should include measures to accelerate the exit of nonviable property developers, remove impediments to housing price adjustment, allocate additional central government funding for housing completion, and assist viable developers to repair balance sheets and adapt to a smaller property market, Gopinath said. (Reporting by Joe Cash and Ryan Woo; Editing by Edmund Klamann and Christopher Cushing)