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Exhibit 8.1

List of Significant Subsidiaries and Consolidated Variable Interest Entity of RLX Technology Inc.

Subsidiaries

Place of Incorporation

Beijing Yueke Technology Co., Ltd.

People’s Republic of China

Shanghai Wuke Information Technology Co., Ltd.

People’s Republic of China

Mons Co., Ltd

South Korea

Supersmooth Alpha HK Limited

Hong Kong

VIE

Place of Incorporation

Beijing Wuxin Technology Co., Ltd.

People’s Republic of China

Subsidiaries of VIE

Place of Incorporation

Shenzhen Wuxin Technology Co., Ltd.

People’s Republic of China

Ningbo Wuxin Information Technology Co., Ltd.

People’s Republic of China