Exhibit 15.2

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April 16, 2021

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BEST Inc.

2nd Floor, Block A, Huaxing Modern Industry Park

No. 18 Tangmiao Road, Xihu District, Hangzhou, Zhejiang Province 310013

People’s Republic of China

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Attention: The Board of Directors

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Dear Sirs or Madam,

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Re: BEST Inc. (the “Company”)

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We, King & Wood Mallesons, consent to the reference to our firm under the captions of “Item 3.D — Risk Factors — Risks Related to Doing Business in the People’s Republic of China” and “Item 4.B — Business Overview —Regulatory Matters” in BEST Inc.’s annual report on Form 20-F for the year ended December 31, 2020, which will be filed with the Securities and Exchange Commission in the month of April 2021.

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In giving such consent, we do not thereby admit that we come within the category of persons whose consent is required under Section 7 of the Securities Act of 1933, or under the Securities Exchange Act of 1934, in each case, as amended, or the regulations promulgated thereunder.

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