The coffee chain said the Chapter 15 petition, which would facilitate the restructuring of its debts, is not expected to materially impact its day-to-day operations, and that its stores remain open.

Chapter 15 bankruptcy allows a foreign debtor to shield assets in the United States.

Xiamen-based Luckin had positioned itself as an ambitious home-grown challenger to U.S. coffee giant Starbucks Corp , but said last April that as much as 2.2 billion yuan ($340 million) in 2019 sales had been fabricated.

Luckin delisted from Nasdaq at the end of June last year after admitting to accounting fraud.

In December, it agreed to pay the U.S. Securities and Commission a $180 million penalty to settle accounting fraud charges for "intentionally and materially" overstating its 2019 revenue and understating a net loss.

The company said that it continues to meet its ongoing business obligations and is paying suppliers and staff.

(Reporting by Bhargav Acharya in Bengaluru and Tony Munroe in Beijing; Editing by Bernard Orr and Jason Neely)