UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 12b-25	SEC FILE NUMBER 001-41003
NOTIFICATION OF LATE FILING	CUSIP NUMBER G6755Q125

(Check One)	☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR
	For Period Ended: March 31, 2024
	☐ Transition Report on Form 10-K
	☐ Transition Report on Form 20-F
	☐ Transition Report on Form 11-K
	☐ Transition Report on Form 10-Q
	☐ Transition Report on Form N-SAR
	For the Transition Period Ended:

Read Instructions (on back page) Before Preparing Form. Please Print or Type.

Nothing in this form shall be construed to imply that the Commission has verified any information contained herein.

If the notification relates to a portion of the filing checked above, identify the Item(s) to which the notification relates:

PART I — REGISTRANT INFORMATION

Onyx Acquisition Co. I

Full Name of Registrant

Former Name if Applicable

104 5th Ave

Address of Principal Executive Office (Street and Number)

New York, New York 10011

City, State and Zip Code

PART II — RULES 12b-25(b) AND (c)
If the subject report could not be filed without unreasonable effort or expense and the registrant seeks relief pursuant to Rule 12b-25(b), the following should be completed. (Check box if appropriate)
	(a)	The reason described in reasonable detail in Part III of this form could not be eliminated without unreasonable effort or expense;
☒	(b)	The subject annual report, semi-annual report, transition report on Form 10-K, Form 20-F, Form 11-K, Form N-SAR or Form N-CSR, or portion thereof, will be filed on or before the fifteenth calendar day following the prescribed due date; or the subject quarterly report or transition report on Form 10-Q or subject distribution report on Form 10-D, or portion thereof will be filed on or before the fifth calendar day following the prescribed due date; and
	(c)	The accountant’s statement or other exhibit required by Rule 12b-25(c) has been attached if applicable.

PART III — NARRATIVE

State below in reasonable detail why Forms 10-K, 20-F, 11-K, 10-Q, 10-D, N-SAR, N-CSR, or the transition report or portion thereof, could not be filed within the prescribed time period.

Onyx Acquisition Co. I (the “Company”) is filing this Notification of Late Filing on Form 12b-25 with respect its Quarterly Report on Form 10-Q for the period ended March 31, 2024 (the “Quarterly Report”). The Company has recently experienced unanticipated delays in its third-party services providers’ clearance of internal procedures necessary to prepare a complete filing of the Quarterly Report in a timely manner. The Company is working diligently with its third-party service providers to complete the Quarterly Report as soon as possible; however, given extraordinary circumstances impacting the availability of third-party service providers involved with the review of the Company’s financial statements, the Company is unable to complete and file the Quarterly Report by the required due date of May 15, 2024 without unreasonable effort and expense. The Company does, however, expect to file such report within five calendar days thereof.

The Company intends to file the Quarterly Report with the SEC as soon as practicable and currently expects to do so within the five-day extension period afforded by Rule 12b-25 under the Securities Exchange Act of 1934, as amended.

PART IV— OTHER INFORMATION

Name and telephone number of person to contact in regard to this notification

(1)	Michael Stern	(212)	974-2844
	(Name)	(Area Code)	(Telephone Number)

(2)	Have all other periodic reports required under Section 13 or 15(d) of the Securities Exchange Act of 1934 or Section 30 of the Investment Company Act of 1940 during the preceding 12 months or for such shorter period that the registrant was required to file such report(s) been filed? If answer is no, identify report(s).	☒	YES	☐	NO
(3)	Is it anticipated that any significant change in results of operations from the corresponding period for the last fiscal year will be reflected by the earnings statements to be included in the subject report or portion thereof?	☐	YES	☒	NO
	If so, attach an explanation of the anticipated change, both narratively and quantitatively, and, if appropriate, state the reasons why a reasonable estimate of the results cannot be made.

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Onyx Acquisition Co. I

(Name of Registrant as Specified in Charter)

has caused this notification to be signed on its behalf by the undersigned hereunto duly authorized.

Date: May 15, 2024	Onyx Acquisition Co. I
	By:	/s/ Michael Stern
	Name:	Michael Stern
	Title:	Director, Chairman and Chief Executive Officer

INSTRUCTION: The form may be signed by an executive officer of the registrant or by any other duly authorized representative. The name and title of the person signing the form shall be typed or printed beneath the signature. If the statement is signed on behalf of the registrant by an authorized representative (other than an executive officer), evidence of the representative’s authority to sign on behalf of the registrant shall be filed with the form.

ATTENTION

Intentional misstatements of fact constitute Federal Criminal Violations (See 18 U.S.C. 1001).

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