China will begin selling the first batch of long-dated bonds this week, the Ministry of Finance said Monday, as Beijing looks to strengthen support for the world's second-largest economy.

The central government will begin issuing some 30-year bonds on Friday as part of a planned sale of more than $138 billion of debt, according to a notice posted to the ministry's website.

Other bonds with tenors of 20 years and 50 years will go on sale on May 24 and June 14 respectively.

The Ministry of Finance did not specify the number of bonds that will be issued.

A volatile property market and high unemployment – particularly among youth – are among the top issues dragging down China's economy.

Leaders have set a target of around 5% for this year's growth, a figure seen as ambitious by many economists.

The bond sales are expected to lift that growth figure by one percentage point, Xing Zhaopeng of Australia and New Zealand Banking Group told Bloomberg.

The bond sale had been hinted at in recent months by Beijing, with Premier Li Qiang saying in March that such measures would be used to support major projects of strategic significance.

"The main result of such issuance will be to replenish capital for domestic banks because most of those bonds will be held by banks," Dan Wang, chief economist at Hang Seng Bank China, told Agence France-Presse (AFP).

"Given the contraction in the issuance of new bank credit, we are likely to see more long-term bond issuance in the future," Dan said.

"It won't help resolve the liquidity problem in the market, but only drive down the long-term financing cost for government projects," she added.

China has only sold such government bonds on a handful of occasions in the face of major economic headwinds, such as in early 2020 to help fund efforts to counter the pandemic.

Lingering risks

Consumer prices in the country have been in positive territory for three straight months, official data showed Saturday, but domestic spending remains relatively weak.

Real estate development once served as a key driver of growth in the country, but mounting debt at several of the sector's biggest firms in recent years has caused activity to stall.

The crisis is being exacerbated by falling home prices and increasing consumer wariness of investing in property.

Authorities have responded by lifting previous restrictions on buying homes in certain areas, including in the major cities of Hangzhou and Xi'an on Thursday, in a bid to spur purchasing.

At China's annual Parliament in March, leaders were upfront about the headwinds facing the economy, pledging to unveil various measures this year to boost growth.

Premier Li said at the time that achieving growth targets this year would "not be easy," given the "lingering risks and hidden dangers" still present in the economy.

And Housing Minister Ni Hong said on the sidelines of the gathering that fixing the property crisis would also be challenging, adding that real estate companies that "need to go bankrupt should go bankrupt, and those that need restructuring should be restructured."

Youth unemployment soared to an unprecedented 21.3% in mid-2023, before officials paused publishing monthly figures.

Investors have called for much greater action by the central government in order to shore up the flagging economy.