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Exhibit 8.1

List of Significant Subsidiaries of the Registrant

as of December 31, 2025

Significant Subsidiaries

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Place of Incorporation

Luckin Coffee Investment Inc.

British Virgin Islands

Luckin Coffee International Holdings Inc.

British Virgin Islands

First Ray International Holdings (Cayman) Limited

Cayman Islands

First Ray Holding Limited

British Virgin Islands

1st Ray International Holdings PTD. LTD.

Singapore

Luckin Coffee Holding Singapore PTE. LTD.

Singapore

Luckin Coffee (SGP) PTE. LTD

Singapore

Luckin Coffee (Hong Kong) Limited

Hong Kong

Luckin Coffee Trading (Hong Kong) Limited

Hong Kong

Luckin Coffee Roasting (Hong Kong) Limited

Hong Kong

Luckin Coffee Hong Kong Operations Limited

Hong Kong

Beijing Luckin Coffee Co., Ltd.

PRC

Luckin Investment (Tianjin) Co., Ltd.

PRC

Luckin Coffee Group Co., Ltd.

PRC

Luckin Coffee Roasting (Pingnan) Co., Ltd.

PRC

Luckin Coffee Food (Jiangsu) Co., Ltd.

PRC

First Ray Operations (New York) LLC

U.S.