EXHIBIT 8.1

Significant Subsidiaries and Consolidated Affiliated Entities of the Registrant

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Subsidiary

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Place of Incorporation

Futu Financial Limited

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Hong Kong

Futu Lending Limited

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Hong Kong

Futu Network Technology Limited

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Hong Kong

Futu Securities (Hong Kong) Limited

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Hong Kong

Futu Securities International (Hong Kong) Limited

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Hong Kong

Futu Trustee Limited

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Hong Kong

Panthertrade (Hong Kong) Limited

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Hong Kong

Airstar Bank Limited

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Hong Kong

Futu US Inc.

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the United States

Moomoo Financial Inc.

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the United States

Futu Clearing Inc.

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the United States

Moomoo Technologies Inc.

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the United States

Moomoo Crypto Inc.

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the United States

Shensi Network Technology (Beijing) Co., Ltd.

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PRC

Futu Network Technology (Shenzhen) Co., Ltd.

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PRC

Moomoo Financial Singapore Pte. Ltd.

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Singapore

Moomoo Securities (Australia) Ltd

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Australia

Moomoo Securities Japan Co., Ltd.

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Japan

Moomoo Financial Canada Inc.

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Canada

Moomoo Securities Malaysia Sdn. Bhd.

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Malaysia

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Consolidated Affiliated Entity

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Place of Incorporation

Shenzhen Futu Network Technology Co., Ltd.

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PRC

Haikou Futu Information Services Co., Ltd.

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PRC

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