Exhibit 99.4

CONSENT OF XUANJUN YANG

YSX Tech. Co., Ltd intends to file a Registration Statement on Form F-1 (together with any amendments or supplements thereto, the “Registration Statement”), registering securities for issuance in its initial public offering. As required by Rule 438 under the Securities Act of 1933, as amended, the undersigned hereby consents to being named in the Registration Statement as a Director Appointee.

Dated June: 13, 2024	/s/ Xuanjun Yang
	Xuanjun Yang