Sec Form 4 Filing - TKB Sponsor I, LLC @ TKB Critical Technologies 1 - 2023-01-18

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person TKB Sponsor I, LLC 2. Issuer Name and Ticker or Trading Symbol TKB Critical Technologies 1 [ USCT] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 400 CONTINENTAL BLVD, SUITE 600 3. Date of Earliest Transaction (MM/DD/YY) 01/18/2023 (Street) EL SEGUNDO, CA90245 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Class A Ordinary Shares 01/18/2023 C 5,650,000 A 5,650,000 D( 3 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Class B Ordinary Shares ( 1 ) 01/18/2023 C 5,650,000 ( 2 ) ( 2 ) Class A Ordinary Shares 5,650,000 $ 0( 1 ) 0 D( 3 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other TKB Sponsor I, LLC 400 CONTINENTAL BLVD, SUITE 600 EL SEGUNDO, CA90245 X Signatures TKB Sponsor I By: /s/ Angela Blatteis, Manager 01/19/2023 Signature of Reporting Person Date

Explanation of Responses:

( 1 )In accordance with the amended and restated memorandum and articles of association of TKB Critical Technologies 1 ("TKB"), the Reporting Person elected to convert its Class B Ordinary Shares into Class A Ordinary Shares on a one-for-one basis for no consideration. ( 2 )The Class B Ordinary Shares were (i) convertible into Class A Ordinary Shares at the Reporting Person's election on a one-for-one basis and (ii) automatically convertible into Class A Ordinary Shares at the time of the closing of TKB's initial business combination on a one-for-one basis, in each case subject to adjustment pursuant to certain anti-dilution rights (which rights were waived by TKB Sponsor I, LLC in connection with TKB's proposed business combination), and had no expiration date. ( 3 )TKB Sponsor I, LLC is the record holder of the shares reported herein. Each of Angela Blatteis, Greg Klein and Philippe Tartavull own interests in TKB Sponsor I, LLC and are managers of TKB Sponsor I, LLC, and may be deemed to share beneficial ownership of such shares. Each of Ms. Blatteis, Mr. Klein and Mr. Tartavull disclaims beneficial ownership of such shares except to the extent of his or her pecuniary interest therein.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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