Exhibit 15.3

9/F, Office Tower C1, Oriental Plaza, 1 East Chang An Ave., Dongcheng District Beijing 100738, PRC Tel: +86 10 8525 5500 Fax: +86 10 8525 5511 / 8525 5522 Beijing • Shanghai • Shenzhen • Haikou • Wuhan • Hong Kong www.hankunlaw.com

Date: April 24, 2023

GIGACLOUD TECHNOLOGY INC

Unit A, 12/F, Shun Ho Tower

24-30 Ice House Street

Central, Hong Kong

Dear Sir/Madam:

We hereby consent to the reference of our firm in GigaCloud Technology Inc’s annual report on Form 20-F for the fiscal year ended December 31, 2022, which will be filed by GigaCloud Technology Inc in April 2023 with the Securities and Exchange Commission pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, and further consent to the incorporation by reference of the summaries of our opinions that appear in the annual report on Form 20-F into the Registration Statements (File No. 333- 267602) on Form S-8.

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.

Yours Sincerely,

/s/ HAN KUN LAW OFFICES

HAN KUN LAW OFFICES