Company: YSXT
Filing Date: 2025-07-31
Form Type: 6-K
Source: 0001104659-25-072729
Chunk: 0

Company: YSX Tech Co., Ltd
Filing Date: 2025-07-31
Form: 6-K
Chunk 0
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<div align='center'>UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of July 2025

Commission File Number: 001-42444

YSX TECH. CO., LTD

401, 4/F, Building 12, 1601 South Guangzhou Avenue

Haizhu District, Guangzhou, Guangdong

People’s Republic of China
(Address of principal executive office)</div>

Indicate by check mark whether the registrant files or will file annual
reports under cover of Form 20-F or Form 40-F:

<div align='center'>Form 20-F x
Form 40-F ¨

SIGNATURE</div>

Pursuant to the requirements of the Securities
Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

| Date: July 31, 2025 | YSX TECH. CO., LTD 
 By:                | /s/ Jie Xiao                                                   |
|:--------------------|:-------------------|:---------------------------------------------------------------|
|                     | Name:              | Jie Xiao                                                       |
|                     | Title:             | Chief Executive Officer and Chairman of the Board of Directors |

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EXHIBIT INDEX</div>

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