Filed Pursuant to Rule 424(b)(3)
Registration No. 333-269095
ROTH CH ACQUISITION IV CO.
888 San Clemente Drive, Suite 400
Newport Beach, CA 92660
Proxy
Statement/Prospectus Supplement
May 19, 2023
To the stockholders of ROTH
CH ACQUISITION IV CO.:
This is
a supplement (this “Supplement”) to the proxy statement/prospectus of Roth CH Acquisition IV Co. (the “Company,”
“ROCG,” “we,” “us” or “our”), dated April 26, 2023 (the “Proxy Statement/Prospectus),
that was sent to you in connection with the Company’s special meeting to consider and vote upon a proposal, among others, to approve
and adopt the Agreement and Plan of Merger (as it may be amended, supplemented or otherwise modified from time to time in accordance with
its terms, the “Merger Agreement”), by and among ROCG, Roth IV Merger Sub Inc., a Delaware corporation and wholly-owned subsidiary
of ROCG (“Merger Sub”), and Tigo Energy, Inc., a Delaware corporation (“Tigo”). Capitalized terms used herein
but not defined shall have the meanings ascribed to such terms in the Proxy Statement/Prospectus.
The purpose
of this Supplement is to modify information in the Proxy Statement/Prospectus related to the management of the Combined Company following
the consummation of the Business Combination and provide information on the Second Amendment to the Merger Agreement.
This Supplement
modifies, supersedes and/or supplements, in part, the information in the Proxy Statement/Prospectus relevant to the applicable topics
and is not complete without, and may not be delivered or utilized except in combination with, the Proxy Statement/Prospectus, including
any amendments or supplements thereto. This Supplement should be read in conjunction with the Proxy Statement/Prospectus and if there
is any inconsistency between the information in the Proxy Statement/Prospectus and this Supplement, you should rely on the information
in this Supplement. Please keep this Supplement with the Proxy Statement/Prospectus for future reference.
Unless otherwise
specified, page and section references listed below are references to pages and sections, respectively, in the Proxy Statement/Prospectus,
not this Supplement. Any change noted in this Supplement shall apply equally and modifies, supersedes and/or supplements such similar
disclosure anywhere it appears in the Proxy Statement/Prospectus irrespective of whether it is reproduced in this Supplement.
Investing
in ROCG’s securities involves a high degree of risk. See the section entitled “Risk Factors,” beginning on page 33 of
the Proxy Statement/Prospectus, for a discussion of information that should be considered in connection with an investment of securities.
Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of the Business Combination, the issuance of shares of ROCG common stock in connection with the
Business Combination or the other transactions described in this proxy statement/prospectus, or passed upon the adequacy or accuracy of
the disclosure in this proxy statement/prospectus. Any representation to the contrary is a criminal offense.
This proxy statement/prospectus
supplement is dated May 19, 2023.
This Supplement should be read in conjunction with the Proxy Statement/Prospectus,
which should be read carefully and in its entirety.
Proxy
Statement/Prospectus Supplement
Update
to Management of the Combined Company Following the Business Combination
The following is intended
to provide information regarding Tigo’s Chief Operating Officer, Jeffery Sullivan, who is expected to serve as the Chief Operating
Officer of the Combined Company following the consummation of the Business Combination. On May 15, 2023, Tigo hired Jeffery Sullivan,
age 51, to serve as its Chief Operating Officer. Effective as of May 15, 2023, Anita Chang transitioned out of the role of Chief Operating
Officer of Tigo and will remain employed by Tigo in a different capacity.
Jeffrey Sullivan Upon the completion
of the Business Combination, Mr. Sullivan will serve as the Chief Operating Officer of the Combined Company. Mr. Sullivan currently serves
as the Chief Operating Officer of Tigo, a position he has held since May 2023. Before joining Tigo, Mr. Sullivan founded eVolocity Systems,
Inc. in April 2022 where he served as Chief Executive Officer until May 2023. Prior to that, he served as the Vice President of Analytical
Services at Covalent Metrology from February 2019 to May 2022. From January 2018 to February 2019, Mr. Sullivan served as the Senior Vice
President of Operations at Qylur Intelligent Systems. Earlier in his career, Mr. Sullivan held leadership roles at General Electric Company
from November 2010 to February 2017.
Upon consummation of the Business Combination,
the Combined Company expects to enter into an indemnification agreement with Mr. Sullivan, in substantially the form of the indemnification
agreements entered into with the Combined Company’s other directors and officers. The indemnification agreement will require the
Combined Company to indemnify Mr. Sullivan to the fullest extent permitted by Delaware law.
As of the date of this
Supplement, Mr. Sullivan beneficially owns no shares of the Combined Company and has no outstanding equity awards.
END
OF Proxy Statement/Prospectus Supplement
Forward-Looking Statements
Certain statements made
in this Supplement are “forward looking statements.” Statements regarding the potential Business Combination and expectations
regarding the combined business are “forward looking statements.” In addition, words such as “estimates,” “projected,”
“expects,” “estimated,” “anticipates,” “forecasts,” “plans,” “intends,”
“believes,” “seeks,” “may,” “will,” “would,” “future,” “propose,”
“target,” “goal,” “objective,” “outlook” and variations of these words or similar expressions
(or the negative versions of such words or expressions) are intended to identify forward-looking statements. These forward-looking statements
are not guarantees of future performance, conditions or results, and involve a number of known and unknown risks, uncertainties, assumptions
and other important factors, many of which are outside the control of the parties, that could cause actual results or outcomes to differ
materially from those discussed in the forward-looking statements.
The forward-looking statements
contained in this Supplement are based on our current expectations and beliefs concerning future developments and their potential effects
on us. There can be no assurance that future developments affecting us will be those that we have anticipated. These forward-looking statements
involve a number of risks, uncertainties (some of which are beyond our control) or other assumptions that may cause actual results or
performance to be materially different from those expressed or implied by these forward-looking statements. These risks and uncertainties
include, but are not limited to, those factors described under the heading “Risk Factors” in the proxy statement/prospectus.
Should one or more of these risks or uncertainties materialize, or should any of our assumptions prove incorrect, actual results may vary
in material respects from those projected in these forward-looking statements. We undertake no obligation to update or revise any forward-looking
statements, whether as a result of new information, future events or otherwise, except as may be required under applicable securities
laws.
Additional Information and Where to Find It
This Supplement relates to the proposed business
combination between Tigo Energy, Inc. (“Tigo”) and Roth CH Acquisition IV Co. (“Roth”) (the “Business Combination”).
In connection with the Business Combination, Roth filed a registration statement, includes a preliminary proxy statement/prospectus, with
the SEC. The registration statement was declared effective on April 26, 2023 and ROCG filed its proxy statement/prospectus with the SEC
on April 26, 2023. INVESTORS AND SECURITY HOLDERS AND OTHER INTERESTED PARTIES ARE URGED TO READ THE PROXY STATEMENT/PROSPECTUS AND ANY
OTHER RELEVANT DOCUMENTS THAT HAVE BEEN FILED OR WILL BE FILED WITH THE SEC, AS WELL AS ANY AMENDMENTS OR SUPPLEMENTS TO THESE DOCUMENTS,
CAREFULLY AND IN THEIR ENTIRETY BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION ABOUT TIGO, ROTH, THE BUSINESS COMBINATION AND RELATED
MATTERS. The documents filed or that will be filed with the SEC relating to the Business Combination (when they are available) can be
obtained free of charge from the SEC’s website at www.sec.gov. These documents (when they are available) can also be
obtained free of charge from Roth upon written request at Roth CH Acquisition IV Co., 888 San Clemente Drive, Suite 400, Newport Beach,
CA, 92660.
Participants in Solicitation
Roth, Tigo, and certain of their directors and
executive officers may be deemed to be participants in the solicitation of proxies in connection with the Business Combination under the
rules of the SEC. Information about Roth’s directors and executive officers and their ownership of Roth’s securities is set
forth in filings with the SEC, including Roth’s Annual Report on Form 10-K filed with the SEC March 31, 2023. To the extent that
holdings of Roth’s securities have changed since the amounts included in Roth’s Annual Report on Form 10-K, such changes have
been or will be reflected on Statements of Changes in Ownership on Form 4 filed with the SEC. Additional information regarding the participants
will also be included in the proxy statement/prospectus, when it becomes available. When available, these documents can be obtained free
of charge from the sources indicated above.
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