Amid an unprecedented boom in bond issuance as borrowing costs plummet to record lows, a state-owned Chinese firm is contemplating an unprecedented offering of a 50-year note. This potential issuance would mark the nation’s longest corporate debt tenor if it comes to fruition.

Wuxi Industry Development Group Co., which is owned by the Wuxi city government near Shanghai, has engaged underwriters to gauge investor interest for a possible 1 billion yuan ($138 million) 50-year domestic bond sale. According to insiders, the deal is still in its early stages, and terms, including the tenor, may change.

If this bond with a 50-year maturity is issued and priced, it would set a new record for the longest-tenor corporate note ever in China’s local market, excluding perpetual securities, according to Bloomberg data.

Such an ultra-long tenor is exceptionally rare in corporate markets both in China and globally. However, firms are eager to secure cheap financing as China’s bond yields and credit spreads hit record lows. Investors are pouring funds into fixed-income assets, despite warnings from the central bank about a potential asset bubble.

The duration considered by Wuxi Industry is unusual even in China’s low-rate environment. More issuances with long tenors could follow, especially from local government financing vehicles (LGFVs). Senior Asia credit strategist at Australia & New Zealand Banking Group Ltd., Ting Meng, noted that extending maturities with long-tenor loans and bonds could be a strategy to address LGFVs’ high debt problems. However, she warned that issuers’ credit and duration could pose risks if interest rates rise in the future.

Previously, only a few state-owned firms in China have issued 30-year corporate notes, which, until now, represent the longest tenor excluding perpetuals. Earlier this month, Wuxi Industry priced a 1 billion yuan, 30-year local bond at 3.23%.

The yield premium for 30-year AAA-rated corporate bonds over comparable sovereign debt has narrowed to a record low of 20 basis points this week, based on China Bond indexes compiled by Bloomberg.

Wuxi Industry, whose operations span semiconductors, trade, and investment, declined to comment on the matter. The company reported a profit of 1.9 billion yuan last year, according to its website.

As China’s bond market continues to heat up, the potential issuance of a 50-year bond by Wuxi Industry Development Group could set a significant precedent, highlighting the trend of leveraging low borrowing costs to secure long-term financing. This move not only reflects the strategic financial maneuvers of Chinese firms but also signals a broader trend that could shape the future of corporate debt issuance in China.