Exhibit 3.1

AMENDMENT

TO THE

AMENDED AND RESTATED MEMORANDUM AND ARTICLES

OF

ASSOCIATION

OF

TKB CRITICAL TECHNOLOGIES 1

“RESOLVED, as a special resolution, that the Amended and Restated Memorandum and Articles of Association of the Company be amended by the deletion of the existing Articles 17.2, 17.3, 49.7, 49.8 and 49.10 in their entirety and the insertion of the following language in its place:

17.2 Class B Shares shall automatically convert into Class A Shares on a one-for-one basis (the Initial conversion Ratio”): (a) at any time and from time to time at the option of the holders thereof; or (b) in connection with the consummation of the Business Combination.

17.3 Notwithstanding the Initial Conversion Ratio, in the case that additional Class A shares or any other Equity-lined Securities, are issued, or deemed issued, by the Company in excess of the amounts offered in the IPO and in connection with the consummation of a Business Combination, all Class B Shares in issue shall automatically convert into Class A Shares in connection with the consummation of a Business Combination at a ratio for which the Class B Shares shall convert into Class A Shares will be adjusted (unless the holders of a majority of the Class B Shares in issue agree to waive such anti-dilution adjustment with respect to any such issuance or deemed issuance) so that the number of Class A Shares issuable upon conversion of all Class B Shares will equal, on an as-converted basis, in the aggregate, 20% of the sum of all Class A Shares and Class B Shares in issue upon completion of the IPO plus all Class A Shares and Equity-linked Securities issued or deemed issued in connection with a Business Combination, excluding any shares issued pursuant to forward purchase agreements, Shares or Equity-linked Securities issued, or to be issued, to any seller in a Business Combination and any private placement warrants issued to the Sponsor or its Affiliates upon conversion of working capital loans made to the Company.

49.7 The Company may, without a shareholder vote, elect to extend the date to consummate a Business Combination on a monthly basis for one month each time until up to 36 months from the closing of the IPO, provided that the Sponsor (or one or more of its affiliates, members or third-party designees) will lend the Company, and the Company will deposit into the Trust Account, for each extension, the lesser of (a) $60,000 or (b) $0.03 for each Public Share then outstanding, for an aggregate deposit of up to $960,000 if all monthly Extensions are exercised. The latest applicable Business Combination deadline is referred to as the “Termination Date”. In the event that the Company has not consummated an initial Business Combination on or before the Termination Date, the Company shall:

(a) cease all operations except for the purpose of winding up;

(b) as promptly as reasonably possible but not more than ten (10) business days thereafter, redeem the Public Shares, at a per-Share price, payable in cash, equal to the aggregate amount then on deposit in the Trust Account, including interest earned on the funds held in the Trust Account and not previously released to the Company (less taxes payable and up to US$100,000 of interest to pay dissolution expenses), divided by the number of then Public Shares in issue, which redemption will completely extinguish public Members’ rights as Members (including the right to receive further liquidation distributions, if any); and

(c) as promptly as reasonably possible following such redemption, subject to the approval of the Company’s remaining Members and the Directors, liquidate and dissolve, subject in each case to its obligations under Cayman Islands law to provide for claims of creditors and other requirements of Applicable Law.

49.8 In the event that any amendment is made to the Articles:

(a) to modify the substance or timing of the Company’s obligation to allow redemption in connection with a Business Combination or redeem 100 per cent of the Public Shares if the Company does not consummate a Business Combination by the Termination Date, or such later time as the Members may approve in accordance with the Articles; or

(b) with respect to any other provision relating to Members’ rights or pre-Business Combination activity, each holder of Public Shares who is not the Sponsor, an Officer or Director shall be provided with the opportunity to redeem their Public Shares upon the approval or effectiveness of any such amendment at a per-Share price, payable in cash, equal to the aggregate amount then on deposit in the Trust Account, including interest earned on the funds held in the Trust Account and not previously released to the Company to pay its taxes, divided by the number of then outstanding Public Shares. The Company’s ability to provide such redemption in this Article is subject to the Redemption Limitation.

49.10 Except in connection with the conversion of Class B Shares into Class A Shares pursuant to the Class B Ordinary Share conversion Article hereof where the holders of such Shares have waived any right to receive funds from the Trust Fund, after the issue of Public Shares, and prior to the consummation of a Business Combination, the Company shall not issue additional Shares or any other securities that would entitle the holders thereof to:

(a) receive funds from the Trust Account; or

(b) vote as a class with Public Shares on a Business Combination.