UNITED STATES SECURITIES AND EXCHANGE COMMISSION ~~Washington, D.C. 20549~~

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

~~PURSUANT~~Pursuant to TOSection ~~SECTION~~ 13 ORor Section 15(d) of The Securities Exchange Act of 1934

OFDate of ~~THE~~Report ~~SECURITIES~~(Date ~~EXCHANGE~~of ~~ACT~~earliest OFevent ~~1934~~ reported): August 13, 2024

~~Date~~ONYX ofACQUISITION ~~Report~~CO. I (~~Date~~Exact name of ~~earliest~~registrant ~~event~~as ~~reported): May~~specified 2,in ~~2024~~its charter)

ONYX ACQUISITION CO. I

Cayman Islands		001-41003		98-1584432
(State or other jurisdiction of incorporation or organization)		(Commission File Number)		(I.R.S. Employer Identification No.)

(Exact name of registrant as specified in its charter)

104 5th Avenue New York, New York		10011
(Address of principal executive offices)		(Zip Code)

Cayman Islands		001-41003		98-1584432
(State or other jurisdiction of incorporation)		(Commission File Number)		(IRS Employer Identification No.)

Registrant’s telephone number, including area code: (212) 974-2844

~~104~~Not Applicable (Former ~~5th~~name ~~Avenue~~or former address, if changed since last report)

~~New~~Check ~~York,~~the appropriate ~~New~~box ~~York~~below ~~10011~~if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the Registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (~~Address~~17 ofCFR ~~principal~~230.425) ~~executive~~☐ ~~offices,~~Soliciting ~~including zip~~material ~~code~~pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

(212) 974-2844

(Registrant’s telephone number, including area code)

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Units, each consisting of one Class A ordinary share, $0.0001 par value, and one-half of one redeemable warrant	ONYXU	The Nasdaq Stock Market LLC
Units, each consisting of one Class A Ordinary Share, $0.0001 par value, and one-half of one redeemable warrant	ONYXU	The Nasdaq Stock Market LLC
Class A ordinary shares included as part of the units	ONYX	The Nasdaq Stock Market LLC
Class A Ordinary Shares included as part of the units	ONYX	The Nasdaq Stock Market LLC
Warrants included as part of the units, each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50	ONYXW	The Nasdaq Stock Market LLC
Redeemable warrants included as part of the units, each whole warrant exercisable for one Class A Ordinary Share at an exercise price of $11.50	ONYXW	The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 ~~(§230.405 of this chapter)~~ or Rule 12b-2 of the Securities Exchange Act of 1934 ~~(§240~~.~~12b-2 of this chapter).~~

Emerging growth company ☒☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item ~~5.02 Departure~~ of1.01. ~~Directors~~Entry orinto ~~Principal~~a ~~Officers;~~Material ~~Election~~Definitive ~~of Directors; Appointment of Principal Officers~~Agreement.

OnThe ~~May 2, 2024, the Board~~disclosure ofcontained ~~Directors~~in ~~(the~~Item ~~“Board”) of Onyx Acquisition Co~~2.03 Iis ~~(the~~incorporated ~~“Company”)~~by ~~received~~reference ~~written~~in ~~notice~~this ~~from~~Item Benjamin Lerner, President of the Company, of his irrevocable and voluntary resignation as President of the Company (such resignation, the “Officer’s Resignation”) effective as of the date thereof (the “Effective Date”)1.01.

~~On May~~ Item 2,.03. ~~2024,~~Creation ~~and in connection with the Resignation, the Board appointed Matthew Vodola, Chief Financial Officer~~ of ~~the~~a ~~Company,~~Direct ~~as President and Chief~~ Financial ~~Officer of~~Obligation ~~the~~or ~~Company~~an ~~(such~~Obligation ~~appointment,~~under ~~the~~an ~~“Officer’s~~Off-Balance ~~Appointment”)~~Sheet ~~effective~~Arrangement as of ~~the~~a ~~Effective Date~~Registrant. Information regarding the full biography and background of Mr. Vodola are included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023, which was filed with the U.S. Securities and Exchange Commission on March 29, 2024, and such biography and background is incorporated herein by reference.

~~There~~On August ~~are~~13, no2024, ~~arrangements or~~Onyx ~~understandings~~Acquisition ~~between Mr~~Co. ~~Vodola~~I (the “Company”) issued an amended and ~~any~~restated ~~other~~promissory ~~persons~~note ~~pursuant~~(the “Restated Note”) in an aggregate principal amount of up to ~~which~~$2,270,000 Mrto Onyx Acquisition Sponsor Co. ~~Vodola~~LLC (the ~~was~~“Sponsor”). ~~appointment~~The asRestated ~~President~~Note ~~and~~amends, ~~Chief~~restates, ~~Financial~~replaces and supersedes ~~Officer~~that certain promissory note dated November 3, 2023, in the principal amount of up to $1,470,000, executed by the Company in favor of the Sponsor. ~~There~~The ~~are~~Restated ~~also~~Note nomay ~~family~~be ~~relationships~~drawn ~~between~~down ~~Mr.~~by ~~Vodola~~the ~~and~~Company ~~any~~from ~~director~~time orto ~~officer~~time prior to the consummation of the Company’s ~~and~~initial merger, heshare ~~has~~exchange, asset acquisition, stock purchase, recapitalization, reorganization or other similar business combination with noone ~~direct~~or more businesses or ~~indirect~~entities ~~material~~(the “Business Combination”). The Note does not bear interest, inmatures ~~any~~on the ~~transaction~~date orof ~~proposed~~consummation ~~transaction~~the ~~required~~Business Combination and is subject to customary events of default. The Restated Note will be ~~disclosed~~repaid ~~pursuant~~only to the extent that the Company has funds available to ~~Item~~it ~~404(a)~~outside of ~~Regulation~~ ~~S-K~~its trust account established in connection with its initial public offering.

The foregoing ~~Board~~description ~~has~~of ~~approved~~the Restated Note is qualified in its entirety by reference to the ~~Officer’s~~ ~~Resignation~~full ~~and~~text of the ~~Officer’s~~Restated ~~Appointment~~Note, ~~effective~~a ascopy of which ~~the~~is ~~Effective~~filed ~~Time~~herewith as Exhibit 10.1 hereto and incorporated by reference herein.

Item 9.01. Financial Statements and Exhibits

(d) Exhibits. The following exhibits are filed with this Form 8-K:

Exhibit No.		Description of Exhibits
10.1*		Amended and Restated Promissory Note, dated August 13, 2024, by and among Onyx Acquisition Co. I and Onyx Acquisition Sponsor Co. LLC.
104		Cover Page Interactive Data File (embedded within the Inline XBRL document).

Certain of the schedules and exhibits to the agreement have been omitted pursuant to Item 601(a)(5) of Regulation S-K. A copy of any omitted schedule or exhibit will be furnished to the SEC upon request.

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 undersigned hereunto duly authorized.

Date: May 2, 2024	ONYX ACQUISITION CO. I
Date: August 16, 2024	ONYX ACQUISITION CO. I
	By:	/s/ Michael Stern
	Name:	Michael Stern
	Title:	Director, Chairman and Chief Executive Officer

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