belfa20260518

SD 1 belfa20260518_sd.htm FORM SD belfa20260518_sd.htm

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM SD

Specialized Disclosure Report

BEL FUSE INC.

(Exact name of registrant as specified in its charter)

New Jersey		000-11676		22-1463699
(State of incorporation)		(Commission File Number)		(I.R.S. Employer Identification No.)

300 Executive Drive, Suite 300, West Orange, New Jersey		07052
(Address of principal executive offices)		(Zip Code)

Lynn Hutkin

Chief Financial Officer

(201) 432-0463

(Name and telephone number, including area code, of the person to contact in connection with this report)

Check the appropriate box to indicate the rule pursuant to which this form is being submitted, and provide the period to which the information in this Form applies:

	☑	Rule 13p-1 under the Securities Exchange Act (17 CFR 240.13p-1) for the reporting period from January 1 to December 31, 2025.

	☐	Rule 13q-1 under the Securities Exchange Act (17 CFR 240.13q-1) for the fiscal year ended _______________.

Section 1 – Conflict Minerals Disclosure

Item 1.01 Conflict Minerals Disclosure and Report

Conflict Minerals Disclosure

The Conflict Minerals Report for the calendar year ended December 31, 2025 filed herewith as Exhibit 1.01, is publicly available at www.belfuse.com. Information on the Company's website is not and should not be considered part of, nor is incorporated by reference into, this Form SD and/or the Conflict Minerals Report for purposes of the Securities Exchange Act of 1934, nor deemed filed with the U.S. Securities and Exchange Commission.

Item 1.02 Exhibit

As specified in Section 3, Item 3.01 of this Form SD, the Company is hereby filing its Conflict Minerals Report as Exhibit 1.01 to this report.

Section 3 – Exhibits

Item 3.01 Exhibits

The following exhibit is filed as part of this report.

Exhibit No. Description

Exhibit 1.01 Conflict Minerals Report of Bel Fuse Inc.

SIGNATURES

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 duly authorized undersigned.

Date: June 1, 2026	BEL FUSE INC.
	(Registrant)


By:	/s/ Lynn Hutkin
	Lynn Hutkin
	Chief Financial Officer (Principal Financial Officer and Principal Accounting Officer)

SEC Form SD filed by Bel Fuse Inc.