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EXHIBIT 8.1

List of Principal Subsidiaries of I-MAB
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Name of Subsidiary

    

Place of Incorporation

I-Mab Biopharma Hong Kong Limited

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Hong Kong

I-Mab Biopharma US Ltd.

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United States

I-Mab Bio-tech (Tianjin) Co., Ltd.

​

People’s Republic of China

I-Mab Biopharma Co., Ltd.

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People’s Republic of China

Zhejiang Tianli Pharmaceutical Sales Co., Ltd.

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People’s Republic of China

I-Mab Pharmaceutical (Shanghai) Co., Ltd.

​

People’s Republic of China

Thirdventure Beijing Bio-tech Co., Ltd.

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People’s Republic of China

Eftan Biotech (Shanghai) Co., Ltd.

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People’s Republic of China

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