# EDGAR Filing Document

**Accession Number:** 0001482541
**File Stem:** 0000921895-25-003388
**Filing Date:** 2025-12
**Character Count:** 70222
**Document Hash:** 1f791bbcd2694e06238a02aac7ebf12a
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000921895-25-003388.hdr.sgml**: 20251223

**ACCESSION NUMBER**: 0000921895-25-003388

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13D/A

**PUBLIC DOCUMENT COUNT**: 4

**FILED AS OF DATE**: 20251223

**DATE AS OF CHANGE**: 20251223

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** CEA Industries Inc.
- **CENTRAL INDEX KEY:** 0001482541
- **STANDARD INDUSTRIAL CLASSIFICATION:** AGRICULTURE SERVICES [0700]
- **ORGANIZATION NAME:** 08 Industrial Applications and Services
- **EIN:** 273911608
- **STATE OF INCORPORATION:** NV
- **FISCAL YEAR END:** 0430

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-88074
- **FILM NUMBER:** 251601249

**BUSINESS ADDRESS:**
- **STREET 1:** 1780 55TH STREET, SUITE C
- **CITY:** BOULDER
- **STATE:** CO
- **ZIP:** 80301
- **BUSINESS PHONE:** 303-993-5271

**MAIL ADDRESS:**
- **STREET 1:** 1780 55TH STREET, SUITE C
- **CITY:** BOULDER
- **STATE:** CO
- **ZIP:** 80301

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Surna Inc.
- **DATE OF NAME CHANGE:** 20100128
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** YZILabs Management Ltd.
- **CENTRAL INDEX KEY:** 0002098271

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** D8
- **FISCAL YEAR END:** 1231
- **LEGAL ENTITY IDENTIFIER:** 98450075EDD8E1AE2D65

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 2ND FLOOR, WATER'S EDGE BUILDING
- **STREET 2:** WICKHAMS CAY II
- **CITY:** ROAD TOWN TORTOLA
- **PROVINCE COUNTRY:** D8
- **ZIP:** VG1110
- **BUSINESS PHONE:** 54-9-11-4082-5010

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 2ND FLOOR, WATER'S EDGE BUILDING
- **STREET 2:** PO BOX 2429 WICKHAMS CAY II
- **CITY:** ROAD TOWN TORTOLA
- **PROVINCE COUNTRY:** D8
- **ZIP:** VG1110

## Ex-1

Exhibit 1

**<u>Transactions in the Shares During the Past 60 Days</u>**

---

| | | | |
|:---|:---|:---|:---|
| &nbsp;&nbsp;<u>Class of Security</u> | &nbsp;&nbsp; Securities<br> <u>Sold</u> | &nbsp;&nbsp; <br> <u>Price ($)</u> | &nbsp;&nbsp; Date of<br> <u>Sale</u> |

---

**<u>JIAJIN HE</u>**

---

| | | | |
|:---|:---|:---|:---|
| &nbsp;&nbsp;Sale of Common Stock | &nbsp;&nbsp;565 | &nbsp;&nbsp;8.0000 | &nbsp;&nbsp;10/26/2025 |
| &nbsp;&nbsp;Sale of Common Stock | &nbsp;&nbsp;16801 | &nbsp;&nbsp;7.8000 | &nbsp;&nbsp;10/27/2025 |
| &nbsp;&nbsp;Sale of Common Stock | &nbsp;&nbsp;27916 | &nbsp;&nbsp;7.6000 | &nbsp;&nbsp;10/29/2025 |
| &nbsp;&nbsp;Sale of Common Stock | &nbsp;&nbsp;853 | &nbsp;&nbsp;7.4000 | &nbsp;&nbsp;10/30/2025 |
| &nbsp;&nbsp;Sale of Common Stock | &nbsp;&nbsp;63121 | &nbsp;&nbsp;7.4000 | &nbsp;&nbsp;10/31/2025 |
| &nbsp;&nbsp;Sale of Common Stock | &nbsp;&nbsp;87092 | &nbsp;&nbsp;6.8000 | &nbsp;&nbsp;11/03/2025 |
| &nbsp;&nbsp;Sale of Common Stock | &nbsp;&nbsp;79971 | &nbsp;&nbsp;6.1000 | &nbsp;&nbsp;11/04/2025 |
| &nbsp;&nbsp;Sale of Common Stock | &nbsp;&nbsp;217 | &nbsp;&nbsp;6.0000 | &nbsp;&nbsp;11/05/2025 |

---

## Exhibit 99.1

**GROUP AGREEMENT**

WHEREAS, certain of the undersigned are shareholders, direct or beneficial, of CEA Industries Inc., a Nevada corporation (the "Company");

WHEREAS, YZi Labs Management Ltd. ("YZi Labs"), and Max S. Baucus, David J. Chapman, Teresa Marie Goody Guillén, Jiajin "Jane" He, Alex Odagiu, Matthew Roszak and Ling "Ella" Zhang (collectively, the "Nominees"), wish to form a group for the purpose of (i) working together to enhance stockholder value at the Company, including seeking representation on the Board of Directors of the Company (the "Board"), (ii) soliciting written consents to, among other things, expand the size of the Board and elect certain persons nominated for election to the Board (including those nominated by or on behalf of YZi Labs), (iii) taking all other action necessary to achieve the foregoing, and (iv) taking any other actions the Group (as defined below) determines to undertake in connection with their respective investment in the Company (collectively, the "Purposes").

NOW, IT IS AGREED, this 19<sup>th</sup> day of December 2025 by the parties hereto:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1.In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), each of the undersigned (collectively, the "Group") agrees to the joint filing on behalf of each of them of statements on Schedule 13D, and any amendments thereto, with respect to the securities of the Company to the extent required by applicable law. Each member of the Group shall be responsible for the accuracy and completeness of his or its own disclosure therein, and is not responsible for the accuracy and completeness of the information concerning the other members, unless such member knows or has reason to know that such information is inaccurate.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2.So long as this agreement is in effect, each of Nominee agrees to provide YZi Labs advance written notice prior to effecting any purchase, sale, acquisition, or disposition of any securities of the Company which such Nominee has, or would have, direct or indirect beneficial ownership so that YZi Labs has an opportunity to review the potential implications of any such transaction in the securities of the Company and pre-clear any such potential transaction in the securities of the Company by any of the Nominees. Each Nominee agrees that such Nominee shall not undertake or effect any purchase, sale, acquisition, or disposition of any securities of the Company without the prior written consent of YZi Labs. For purposes of this agreement, the term "beneficial ownership" shall have the meaning of such term set forth in Rule 13d-3 under the Exchange Act.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3.So long as this agreement is in effect, each of the undersigned shall provide written notice to Olshan Frome Wolosky LLP ("Olshan") and YZi Labs of any change to his or its ownership of securities of the Company by 4:30 PM Eastern Time on the date of any such change in ownership of securities of the Company.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.Each of the undersigned agrees to form the Group for the Purposes set forth above.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.YZi Labs shall have the right to pre-approve all expenses incurred in connection with the Group's activities and agrees to pay directly all such pre-approved expenses.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6.Each of the undersigned agrees that any filing with the Securities and Exchange Commission, press release or other communication proposed to be made or issued by the Group or any member of the Group in connection with the Group's activities set forth in Section 4 shall be as directed by YZi Labs.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.The relationship of the parties hereto shall be limited to carrying on the business of the Group in accordance with the terms of this agreement. Such relationship shall be construed and deemed to be for the sole and limited purpose of carrying on such business as described herein. Nothing herein shall be construed to authorize any party to act as an agent for any other party, or to create a joint venture or partnership, or to constitute an indemnification. Except as provided in Section 2 and Section 3, nothing herein shall restrict any party's right to purchase or sell securities of the Company, as he or it deems appropriate, in his or its sole discretion, provided that all such purchases and sales are made in compliance with the provisions of this agreement and all applicable securities laws.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8.This Agreement may be executed in two or more counterparts, each of which shall be deemed an original and all of which, taken together, shall constitute a single agreement. Any signature to this agreement transmitted by facsimile transmission, by electronic mail in "portable document format" (".pdf") form or by any other electronic means intended to preserve the original graphic and pictorial appearance of a document shall have the same effect as physical delivery of the paper document bearing the original signature

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;9.This agreement is governed by and will be construed in accordance with the laws of the State of New York. In the event of any dispute arising out of the provisions of this agreement or the parties' respective investment in the Company, the parties hereto consent and submit to the exclusive jurisdiction of the United States District Court for the Southern District of New York located in the Borough of Manhattan or the courts of the State of New York located in the County of New York.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;10.The parties' rights and obligations under this agreement (other than the rights and obligations set forth in Section 5 and Section 9 which shall survive any termination of this agreement) shall terminate upon the earlier to occur of (i) the conclusion of the Group's activities set forth in Section 4 or (ii) YZi Labs providing written notice of termination to the other parties.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;11.Each party hereby waives the application of any law, regulation, holding, or rule of construction providing that ambiguities in an agreement or other document will be construed against the party drafting such agreement or document.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;12.The terms and provisions of this agreement may not be modified, waived or amended without the written consent of each of the parties hereto.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;13.Each party to this agreement acknowledges that Olshan shall act as counsel for both the Group and YZi Labs relating to their investment in the Company.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;14.Each of the undersigned parties hereby agrees that this agreement shall be filed as an exhibit to any Schedule 13D required to be filed under applicable law pursuant to Rule 13d-1(k)(1)(iii) under the Exchange Act.

[Signature pages on next page]

IN WITNESS WHEREOF, the parties hereto have caused this agreement to be executed as of the day and year first above written.

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;YZi Labs Management Ltd. | &nbsp;&nbsp;YZi Labs Management Ltd. | &nbsp;&nbsp;YZi Labs Management Ltd. |
| &nbsp;&nbsp;By: | &nbsp;&nbsp; /s/ Ling Zhang | &nbsp;&nbsp; /s/ Ling Zhang |
|  | &nbsp;&nbsp;Name: | &nbsp;&nbsp;Ling Zhang |
|  | &nbsp;&nbsp;Title: | &nbsp;&nbsp;Authorized Signatory |

---

---

| |
|:---|
| &nbsp;&nbsp; /s/ Max Baucus |
| &nbsp;&nbsp;Max Baucus |

---

---

| |
|:---|
| &nbsp;&nbsp; /s/ David James Chapman |
| &nbsp;&nbsp;David James Chapman |

---

---

| |
|:---|
| &nbsp;&nbsp; /s/ Teresa Goody Guillén |
| &nbsp;&nbsp;Teresa Goody Guillén |

---

---

| |
|:---|
| &nbsp;&nbsp; /s/ Jiajin He |
| &nbsp;&nbsp;Jiajin He |

---

---

| |
|:---|
| &nbsp;&nbsp; /s/ Alex Odagiu |
| &nbsp;&nbsp;Alex Odagiu |

---

---

| |
|:---|
| &nbsp;&nbsp; /s/ Matthew Roszak |
| &nbsp;&nbsp;Matthew Roszak |

---

---

| |
|:---|
| &nbsp;&nbsp; /s/ Ling Zhang |
| &nbsp;&nbsp;Ling Zhang |

---

## Exhibit 99.2

**POWER OF ATTORNEY**

Know all by these presents, that the undersigned hereby constitutes and appoints Ling Zhang, the undersigned's true and lawful attorney-in-fact to take any and all action in connection with (i) the undersigned's beneficial ownership of, or participation in a group with respect to, securities of CEA Industries Inc. (the "Company") directly or indirectly beneficially owned by YZILabs Management Ltd. ("YZi Labs") or any of its affiliates (collectively, the "Group") and (ii) the solicitation of written consents that YZi Labs has commenced to, among other things, expand the size of the Company's Board of Directors (the "Board") and to elect the YZi Labs's slate of director candidates to the Board through a consent solicitation or any other method permitted under the Nevada Revised Statutes (the "Solicitation"). Such action shall include, but not be limited to:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1. executing for and on behalf of the undersigned any Schedule 13D, and amendments thereto, filed by the Group that are required to be filed under Section 13(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and the rules thereunder in connection with the undersigned's beneficial ownership of, or participation in a group with respect to, securities of the Company or the Solicitation;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2. if applicable, executing for and on behalf of the undersigned all Forms 3, 4 and 5 required to be filed under Section 16(a) of the Exchange Act and the rules thereunder in connection with the undersigned's beneficial ownership of, or participation in a group with respect to, securities of the Company or the Solicitation;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3. executing for and on behalf of the undersigned all Group Agreements or similar documents pursuant to which the undersigned shall agree to be a member of the Group;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4. performing any and all acts for and on behalf of the undersigned that may be necessary or desirable to complete and execute any such document, complete and execute any amendment or amendments thereto, and timely file such form with the United States Securities and Exchange Commission and any stock exchange or similar authority; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5. taking any other action of any type whatsoever in connection with the Solicitation, including entering into any settlement agreement, that in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required by, the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact's discretion.

The undersigned hereby grants to such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact's substitutes, shall lawfully do or cause to be done by virtue of this Power of Attorney and the rights and powers herein granted. The undersigned acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, is not assuming any of the undersigned's responsibilities to comply with Section 13(d), Section 16 or Section 14 of the Exchange Act.

This Power of Attorney shall remain in full force and effect until the undersigned is no longer a member of the Group unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 19th day of December 2025.

---

| |
|:---|
| &nbsp;&nbsp; /s/ Max Baucus |
| &nbsp;&nbsp;**Max baucus** |

---

**POWER OF ATTORNEY**

Know all by these presents, that the undersigned hereby constitutes and appoints Ling Zhang, the undersigned's true and lawful attorney-in-fact to take any and all action in connection with (i) the undersigned's beneficial ownership of, or participation in a group with respect to, securities of CEA Industries Inc. (the "Company") directly or indirectly beneficially owned by YZILabs Management Ltd. ("YZi Labs") or any of its affiliates (collectively, the "Group") and (ii) the solicitation of written consents that YZi Labs has commenced to, among other things, expand the size of the Company's Board of Directors (the "Board") and to elect the YZi Labs's slate of director candidates to the Board through a consent solicitation or any other method permitted under the Nevada Revised Statutes (the "Solicitation"). Such action shall include, but not be limited to:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1. executing for and on behalf of the undersigned any Schedule 13D, and amendments thereto, filed by the Group that are required to be filed under Section 13(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and the rules thereunder in connection with the undersigned's beneficial ownership of, or participation in a group with respect to, securities of the Company or the Solicitation;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2. if applicable, executing for and on behalf of the undersigned all Forms 3, 4 and 5 required to be filed under Section 16(a) of the Exchange Act and the rules thereunder in connection with the undersigned's beneficial ownership of, or participation in a group with respect to, securities of the Company or the Solicitation;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3. executing for and on behalf of the undersigned all Group Agreements or similar documents pursuant to which the undersigned shall agree to be a member of the Group;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4. performing any and all acts for and on behalf of the undersigned that may be necessary or desirable to complete and execute any such document, complete and execute any amendment or amendments thereto, and timely file such form with the United States Securities and Exchange Commission and any stock exchange or similar authority; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5. taking any other action of any type whatsoever in connection with the Solicitation, including entering into any settlement agreement, that in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required by, the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact's discretion.

The undersigned hereby grants to such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact's substitutes, shall lawfully do or cause to be done by virtue of this Power of Attorney and the rights and powers herein granted. The undersigned acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, is not assuming any of the undersigned's responsibilities to comply with Section 13(d), Section 16 or Section 14 of the Exchange Act.

This Power of Attorney shall remain in full force and effect until the undersigned is no longer a member of the Group unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 19th day of December 2025.

---

| |
|:---|
| &nbsp;&nbsp; /s/ David James Chapman |
| &nbsp;&nbsp;**DAVID JAMES CHAPMAN** |

---

**POWER OF ATTORNEY**

Know all by these presents, that the undersigned hereby constitutes and appoints Ling Zhang, the undersigned's true and lawful attorney-in-fact to take any and all action in connection with (i) the undersigned's beneficial ownership of, or participation in a group with respect to, securities of CEA Industries Inc. (the "Company") directly or indirectly beneficially owned by YZILabs Management Ltd. ("YZi Labs") or any of its affiliates (collectively, the "Group") and (ii) the solicitation of written consents that YZi Labs has commenced to, among other things, expand the size of the Company's Board of Directors (the "Board") and to elect the YZi Labs's slate of director candidates to the Board through a consent solicitation or any other method permitted under the Nevada Revised Statutes (the "Solicitation"). Such action shall include, but not be limited to:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1. executing for and on behalf of the undersigned any Schedule 13D, and amendments thereto, filed by the Group that are required to be filed under Section 13(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and the rules thereunder in connection with the undersigned's beneficial ownership of, or participation in a group with respect to, securities of the Company or the Solicitation;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2. if applicable, executing for and on behalf of the undersigned all Forms 3, 4 and 5 required to be filed under Section 16(a) of the Exchange Act and the rules thereunder in connection with the undersigned's beneficial ownership of, or participation in a group with respect to, securities of the Company or the Solicitation;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3. executing for and on behalf of the undersigned all Group Agreements or similar documents pursuant to which the undersigned shall agree to be a member of the Group;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4. performing any and all acts for and on behalf of the undersigned that may be necessary or desirable to complete and execute any such document, complete and execute any amendment or amendments thereto, and timely file such form with the United States Securities and Exchange Commission and any stock exchange or similar authority; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5. taking any other action of any type whatsoever in connection with the Solicitation, including entering into any settlement agreement, that in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required by, the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact's discretion.

The undersigned hereby grants to such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact's substitutes, shall lawfully do or cause to be done by virtue of this Power of Attorney and the rights and powers herein granted. The undersigned acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, is not assuming any of the undersigned's responsibilities to comply with Section 13(d), Section 16 or Section 14 of the Exchange Act.

This Power of Attorney shall remain in full force and effect until the undersigned is no longer a member of the Group unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 19th day of December 2025.

---

| |
|:---|
| &nbsp;&nbsp; /s/ Teresa Goody Guillén |
| &nbsp;&nbsp;**Teresa goody guillÉn** |

---

**POWER OF ATTORNEY**

Know all by these presents, that the undersigned hereby constitutes and appoints Ling Zhang, the undersigned's true and lawful attorney-in-fact to take any and all action in connection with (i) the undersigned's beneficial ownership of, or participation in a group with respect to, securities of CEA Industries Inc. (the "Company") directly or indirectly beneficially owned by YZILabs Management Ltd. ("YZi Labs") or any of its affiliates (collectively, the "Group") and (ii) the solicitation of written consents that YZi Labs has commenced to, among other things, expand the size of the Company's Board of Directors (the "Board") and to elect the YZi Labs's slate of director candidates to the Board through a consent solicitation or any other method permitted under the Nevada Revised Statutes (the "Solicitation"). Such action shall include, but not be limited to:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1. executing for and on behalf of the undersigned any Schedule 13D, and amendments thereto, filed by the Group that are required to be filed under Section 13(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and the rules thereunder in connection with the undersigned's beneficial ownership of, or participation in a group with respect to, securities of the Company or the Solicitation;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2. if applicable, executing for and on behalf of the undersigned all Forms 3, 4 and 5 required to be filed under Section 16(a) of the Exchange Act and the rules thereunder in connection with the undersigned's beneficial ownership of, or participation in a group with respect to, securities of the Company or the Solicitation;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3. executing for and on behalf of the undersigned all Group Agreements or similar documents pursuant to which the undersigned shall agree to be a member of the Group;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4. performing any and all acts for and on behalf of the undersigned that may be necessary or desirable to complete and execute any such document, complete and execute any amendment or amendments thereto, and timely file such form with the United States Securities and Exchange Commission and any stock exchange or similar authority; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5. taking any other action of any type whatsoever in connection with the Solicitation, including entering into any settlement agreement, that in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required by, the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact's discretion.

The undersigned hereby grants to such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact's substitutes, shall lawfully do or cause to be done by virtue of this Power of Attorney and the rights and powers herein granted. The undersigned acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, is not assuming any of the undersigned's responsibilities to comply with Section 13(d), Section 16 or Section 14 of the Exchange Act.

This Power of Attorney shall remain in full force and effect until the undersigned is no longer a member of the Group unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 19th day of December 2025.

---

| |
|:---|
| &nbsp;&nbsp; /s/ Jiajin He |
| &nbsp;&nbsp;**JIAJIN HE** |

---

**POWER OF ATTORNEY**

Know all by these presents, that the undersigned hereby constitutes and appoints Ling Zhang, the undersigned's true and lawful attorney-in-fact to take any and all action in connection with (i) the undersigned's beneficial ownership of, or participation in a group with respect to, securities of CEA Industries Inc. (the "Company") directly or indirectly beneficially owned by YZILabs Management Ltd. ("YZi Labs") or any of its affiliates (collectively, the "Group") and (ii) the solicitation of written consents that YZi Labs has commenced to, among other things, expand the size of the Company's Board of Directors (the "Board") and to elect the YZi Labs's slate of director candidates to the Board through a consent solicitation or any other method permitted under the Nevada Revised Statutes (the "Solicitation"). Such action shall include, but not be limited to:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1. executing for and on behalf of the undersigned any Schedule 13D, and amendments thereto, filed by the Group that are required to be filed under Section 13(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and the rules thereunder in connection with the undersigned's beneficial ownership of, or participation in a group with respect to, securities of the Company or the Solicitation;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2. if applicable, executing for and on behalf of the undersigned all Forms 3, 4 and 5 required to be filed under Section 16(a) of the Exchange Act and the rules thereunder in connection with the undersigned's beneficial ownership of, or participation in a group with respect to, securities of the Company or the Solicitation;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3. executing for and on behalf of the undersigned all Group Agreements or similar documents pursuant to which the undersigned shall agree to be a member of the Group;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4. performing any and all acts for and on behalf of the undersigned that may be necessary or desirable to complete and execute any such document, complete and execute any amendment or amendments thereto, and timely file such form with the United States Securities and Exchange Commission and any stock exchange or similar authority; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5. taking any other action of any type whatsoever in connection with the Solicitation, including entering into any settlement agreement, that in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required by, the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact's discretion.

The undersigned hereby grants to such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact's substitutes, shall lawfully do or cause to be done by virtue of this Power of Attorney and the rights and powers herein granted. The undersigned acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, is not assuming any of the undersigned's responsibilities to comply with Section 13(d), Section 16 or Section 14 of the Exchange Act.

This Power of Attorney shall remain in full force and effect until the undersigned is no longer a member of the Group unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 19th day of December 2025.

---

| |
|:---|
| &nbsp;&nbsp; /s/ Alex Odagiu |
| &nbsp;&nbsp;**ALEX ODAGIU** |

---

**POWER OF ATTORNEY**

Know all by these presents, that the undersigned hereby constitutes and appoints Ling Zhang, the undersigned's true and lawful attorney-in-fact to take any and all action in connection with (i) the undersigned's beneficial ownership of, or participation in a group with respect to, securities of CEA Industries Inc. (the "Company") directly or indirectly beneficially owned by YZILabs Management Ltd. ("YZi Labs") or any of its affiliates (collectively, the "Group") and (ii) the solicitation of written consents that YZi Labs has commenced to, among other things, expand the size of the Company's Board of Directors (the "Board") and to elect the YZi Labs's slate of director candidates to the Board through a consent solicitation or any other method permitted under the Nevada Revised Statutes (the "Solicitation"). Such action shall include, but not be limited to:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1. executing for and on behalf of the undersigned any Schedule 13D, and amendments thereto, filed by the Group that are required to be filed under Section 13(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and the rules thereunder in connection with the undersigned's beneficial ownership of, or participation in a group with respect to, securities of the Company or the Solicitation;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2. if applicable, executing for and on behalf of the undersigned all Forms 3, 4 and 5 required to be filed under Section 16(a) of the Exchange Act and the rules thereunder in connection with the undersigned's beneficial ownership of, or participation in a group with respect to, securities of the Company or the Solicitation;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3. executing for and on behalf of the undersigned all Group Agreements or similar documents pursuant to which the undersigned shall agree to be a member of the Group;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4. performing any and all acts for and on behalf of the undersigned that may be necessary or desirable to complete and execute any such document, complete and execute any amendment or amendments thereto, and timely file such form with the United States Securities and Exchange Commission and any stock exchange or similar authority; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5. taking any other action of any type whatsoever in connection with the Solicitation, including entering into any settlement agreement, that in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required by, the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact's discretion.

The undersigned hereby grants to such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact's substitutes, shall lawfully do or cause to be done by virtue of this Power of Attorney and the rights and powers herein granted. The undersigned acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, is not assuming any of the undersigned's responsibilities to comply with Section 13(d), Section 16 or Section 14 of the Exchange Act.

This Power of Attorney shall remain in full force and effect until the undersigned is no longer a member of the Group unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 19th day of December 2025.

---

| |
|:---|
| &nbsp;&nbsp; /s/ Matthew Roszak |
| &nbsp;&nbsp;**MATTHEW ROSZAK** |

---

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

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**(Amendment No. 1)**

**CEA Industries Inc.**

*(Name of Issuer)*

**Common Stock, par value $0.00001 per share**

*(Title of Class of Securities)*

**86887P309**

*(CUSIP Number)*

**JIA "HOLLY" YOU**<br>YZILABS MANAGEMENT LTD.<br>2 Fl, Water's Edge Bldg, Wickhams Cay II<br>Road Town, Tortola D8 VG 110<br>201-855-6358

*(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)*

**12/19/2025**

*(Date of Event Which Requires Filing of this Statement)*

| **CUSIP No.** | **86887P309** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**YZILabs Management Ltd.** | Name of reporting person<br>**YZILabs Management Ltd.** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**WC** | Source of funds (See Instructions)<br>**WC** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**D8** | Citizenship or place of organization<br>**D8** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**2150481.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**2150481.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**2150481.00** | Aggregate amount beneficially owned by each reporting person<br>**2150481.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**4.9%** | Percent of class represented by amount in Row (11)<br>**4.9%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**CO** | Type of Reporting Person (See Instructions)<br>**CO** | |

---

| **CUSIP No.** | **86887P309** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Changpeng Zhao** | Name of reporting person<br>**Changpeng Zhao** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[x] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[x] | |
| 6 | Citizenship or place of organization<br>**C0** | Citizenship or place of organization<br>**C0** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**2150481.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**2150481.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**2150481.00** | Aggregate amount beneficially owned by each reporting person<br>**2150481.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**4.9%** | Percent of class represented by amount in Row (11)<br>**4.9%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

| **CUSIP No.** | **86887P309** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Baucus Sieben Max** | Name of reporting person<br>**Baucus Sieben Max** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**—** | Source of funds (See Instructions)<br>**—** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**0.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**0.00** | Aggregate amount beneficially owned by each reporting person<br>**0.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**0%** | Percent of class represented by amount in Row (11)<br>**0%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

| **CUSIP No.** | **86887P309** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Chapman James David** | Name of reporting person<br>**Chapman James David** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**—** | Source of funds (See Instructions)<br>**—** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X0** | Citizenship or place of organization<br>**X0** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**0.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**0.00** | Aggregate amount beneficially owned by each reporting person<br>**0.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**0%** | Percent of class represented by amount in Row (11)<br>**0%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** Mr. Chapman is a citizen of the United Kingdom and Australia.

| **CUSIP No.** | **86887P309** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Guillen Goody Teresa Marie** | Name of reporting person<br>**Guillen Goody Teresa Marie** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**—** | Source of funds (See Instructions)<br>**—** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**0.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**0.00** | Aggregate amount beneficially owned by each reporting person<br>**0.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**0%** | Percent of class represented by amount in Row (11)<br>**0%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** Ms. Goody Guillen is a citizen of the United States and Australia.

| **CUSIP No.** | **86887P309** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**He Jiajin** | Name of reporting person<br>**He Jiajin** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**PF** | Source of funds (See Instructions)<br>**PF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**CHINA** | Citizenship or place of organization<br>**CHINA** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**2099644.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**2099644.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**0.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**2099644.00** | Aggregate amount beneficially owned by each reporting person<br>**2099644.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**4.6%** | Percent of class represented by amount in Row (11)<br>**4.6%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

| **CUSIP No.** | **86887P309** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Odagiu Alex** | Name of reporting person<br>**Odagiu Alex** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**PF** | Source of funds (See Instructions)<br>**PF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X0** | Citizenship or place of organization<br>**X0** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**4918.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**4918.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**0.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**4918.00** | Aggregate amount beneficially owned by each reporting person<br>**4918.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**0.01%** | Percent of class represented by amount in Row (11)<br>**0.01%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** Mr. Odagiu is a citizen of the United Kingdom, Moldova and Romania.

| **CUSIP No.** | **86887P309** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Roszak Matthew** | Name of reporting person<br>**Roszak Matthew** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**—** | Source of funds (See Instructions)<br>**—** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**0.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**0.00** | Aggregate amount beneficially owned by each reporting person<br>**0.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**0%** | Percent of class represented by amount in Row (11)<br>**0%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** Mr. Roszak is a citizen of the United States and Poland.

| **CUSIP No.** | **86887P309** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Zhang Ling** | Name of reporting person<br>**Zhang Ling** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**—** | Source of funds (See Instructions)<br>**—** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**U0** | Citizenship or place of organization<br>**U0** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**0.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**0.00** | Aggregate amount beneficially owned by each reporting person<br>**0.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**0%** | Percent of class represented by amount in Row (11)<br>**0%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Item 1. Security and Issuer**

**(a) Title of Class of Securities:**
Common Stock, par value $0.00001 per share

**(b) Name of Issuer:**
CEA Industries Inc.

**(c) Address of Issuer's Principal Executive Offices:**
1780 55TH STREET, SUITE C, BOULDER, CO, 80301

**Item 4. Purpose of Transaction**

Item 4 is hereby supplemented to add the following:

On December 19, 2025, YZi Labs and Mr. Baucus, Mr. Chapman, Ms. Goody Guillen, Ms. He, Mr. Odagiu, Mr. Roszak and Ms. Zhang (such individuals collectively, the "Nominees") entered into a Group Agreement. Pursuant to the terms of the Group Agreement, the parties agreed, among other things, (i) to the joint filing of statements on Schedule 13D on behalf of each of them with respect to the securities of the Issuer to the extent required by applicable law, (ii) to working together to enhance stockholder value at the Issuer, including seeking representation on the Board, (iii) to solicit written consents to, among other things, expand the size of the Board and to elect certain persons nominated for election to the Board (including those nominated by or on behalf of YZi Labs), (iv) that each Nominee would not enter into any transactions in the securities of the Issuer without the prior written consent of YZi Labs, (v) YZi Labs would bear all approved expenses incurred in connection with the group's activities, and (vi) to take all other action necessary to achieve the foregoing. The foregoing description does not purport to be complete and is qualified in its entirety by reference to the full text of the Group Agreement, which is attached hereto as Exhibit 99.1 and incorporated by reference herein.

YZi Labs intends to file a revised preliminary consent statement on Schedule 14A with the Securities Exchange Commission to be used to solicit consents, to among other things, expand the size of the Board and appoint each of the Nominees to the Board to fill the resulting vacancies.

**Item 5. Interest in Securities of the Issuer**

**(a)**
Item 5(a) is hereby amended and restated to read as follows:

The aggregate percentage of Shares reported owned by Reporting Person named herein is based upon a denominator that is the sum of: (i) 44,062,938 Shares outstanding as of December 12, 2025, which is the total number of shares outstanding as reported in the Company's Quarterly Report on Form 10-Q filed with the SEC on December 15, 2025, and (ii) 1,188,120 Shares issuable upon the exercise of certain warrants held by the Reporting Persons.

As of the close of business on the date hereof, YZi Labs beneficially owned 2,150,481 Shares, constituting approximately 4.9% of the Shares outstanding. As the sole director of YZi Labs, Mr. Zhao may be deemed to beneficially own the 2,150,481 Shares beneficially owned by YZi Labs, representing percentage ownership of approximately 4.9%.

As of the close of business on the date hereof, YZi Labs held (i) 7,750,510 Pre-Funded Warrants, (ii) 9,900,991 Stapled Warrants and (iii) 3,564,359 Strategic Advisor Warrants. The Pre-Funded Warrants are immediately exercisable at an initial exercise price equal to $0.00001 per Share and may be exercised at any time until the Pre-Funded Warrants are exercised in full, subject to the Beneficial Ownership Limitation (as defined below). The Stapled Warrants are immediately exercisable at an initial exercise price equal to $15.15 per Share and may be exercised at any time on or prior to 5:00pm on June 28, 2028, subject to the Beneficial Ownership Limitation. The Strategic Advisor Warrants are immediately exercisable at an exercise price equal to $0.00001 per Share and may be exercised at any point on or prior to 5:00 p.m. on August 5, 2030, subject to the Beneficial Ownership Limitation. Each of the Pre-Funded Warrants, the Stapled Warrants and the Strategic Advisor Warrants either provide, or the holder has elected, that the holder shall not have the right to exercise any portion of any such warrants to the extent that after giving effect to such issuance after exercise, such holder and certain of its affiliates would be deemed to beneficially own, as determined in accordance with Section 13(d) of the Exchange Act, more than 4.99% of the Issuer's then outstanding Shares (the "Beneficial Ownership Limitations"). Pursuant to the terms of the Pre-Funded Warrants, the holder may increase or decrease the Beneficial Ownership Limitation upon 61 days' notice to the Issuer, provided that such Beneficial Ownership Limitation in no event exceeds 19.99% of the Issuer's then outstanding Shares. Pursuant to the terms of the Stapled Warrants, the holder may increase or decrease the Beneficial Ownership Limitation upon 61 days' notice to the Issuer to any other percentage specified in the notice. Pursuant to the terms of the Strategic Advisor Warrants, the holder may increase or decrease the Beneficial Ownership Limitation upon 61 days' notice to the Issuer, provided that such Beneficial Ownership Limitation in no event exceeds 9.99% of the Issuer's then outstanding Shares. As of the close of business on the date hereof, the Beneficial Ownership Limitations prohibit the exercise of any and all of the warrants held by YZi Labs and the shares underlying the Pre-Funded Warrants, the Stapled Warrants and the Strategic Advisor Warrants held by YZi Labs are not included in YZi Labs' or Mr. Zhao's beneficial ownership as reported herein.

As of the close of business on the date hereof, Ms. He may be deemed to beneficially own 2,099,644 Shares, including 1,188,120 Shares underlying certain Stapled Warrants, representing ownership of approximately 4.6% of the Shares outstanding.

As of the close of business on the date hereof, Mr. Odagiu may be deemed to beneficially own 4,918 Shares, representing ownership of less than 1% of the Shares outstanding.

The Stapled Warrants held by Ms. He are not subject to a Beneficial Ownership Limitation and are currently exercisable.

Mr. Odagiu is a member of Goldmount III a series of Allocations 2025 Master, LLC, a Delaware limited liability company ("Allocations"), which participated in the PIPE and beneficially owns securities of the Company. As the result of the foregoing relationships Mr. Odagiu may be deemed to have an economic interest in certain of the securities of the Company held by Allocations. Mr. Odagiu has neither voting nor investment power with respect to any of the securities of the Company held by Allocations, nor does he have the right to acquire such voting or investment power within 60 days. Allocations is not party to the Group Agreement, and the Reporting Persons have not agreed to act together with Allocations for the purpose of acquiring, holding, voting or disposing of any securities of the Company. As such, Allocations is not identified as a Reporting Person herein.

As of the date hereof, each of Messrs. Baucus, Chapman and Roszak, and Mses. Goody Guillen and Zhang do not beneficially own any Shares.

Notwithstanding the above, Ms. Goody Guillen is an indirect member of Arche Capital SPV IV LLC, a Delaware limited liability company ("Arche"), which participated in the PIPE and beneficially owns securities of the Company. As the result of the foregoing relationships Ms. Goody Guillen may be deemed to have an indirect economic interest in certain of the securities of the Company held by Arche. Ms. Goody Guillen has neither voting nor investment power with respect to any of the securities of the Company held by Arche, nor does she have the right to acquire such voting or investment power within 60 days. Arche is not party to the Group Agreement, and the Reporting Persons have not agreed to act together with Arche for the purpose of acquiring, holding, voting or disposing of any securities of the Company. As such, Arche is not identified as a Reporting Person herein.

Each of the Reporting Persons may be deemed to be a member of a "group" with the other Reporting Persons for the purposes of Section 13(d)(3) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and such group may be deemed to beneficially own the 4,255,043 Shares owned in the aggregate by all of the Reporting Persons, constituting approximately 9.2% of the outstanding Shares. The filing of this Schedule 13D shall not be deemed an admission that the Reporting Persons are, for purposes of Section 13(d) of the Exchange Act, the beneficial owners of any securities of the Issuer he, she or it does not directly own. Each of the Reporting Persons specifically disclaims beneficial ownership of the securities reported herein that he, she or it does not directly own.

**(b)**
—

**(c)**
Item 5(c) is hereby amended and restated to read as follows:

The transactions in the securities of the Issuer during the past sixty days are set forth in Exhibit 1 and are incorporated herein by reference. All such transactions were effected in the open market unless otherwise noted therein.

**Item 6. Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer.**

Item 6 is hereby supplemented to add the following:

The description of the Group Agreement set forth in Item 4 above is incorporated herein by reference. The full text of the Group Agreement is attached hereto as Exhibit 99.1 and incorporated herein by reference.

Each of the Nominees (other than Ms. Zhang) has granted Ms. Zhang a power of attorney (collectively, the "Powers of Attorney") to execute certain SEC filings and other documents in connection with the solicitation of consents from the Issuer's stockholders in connection with the Consent Solicitation and any related transactions. Copies of the Powers of Attorney are attached hereto as Exhibit 99.2 and are incorporated herein by reference.

In connection with the PIPE, on July 28, 2025, Ms. He entered into a Securities Purchase Agreement and Registration Rights Agreement with the Issuer pursuant to which Ms. He agreed to purchase 1,188,120 Shares at an offering price of $10.10 per Share, and 1,188,120 Stapled Warrants at an exercise price of $15.15 per Stapled Warrant, and received certain registration rights in connection with the PIPE. The foregoing descriptions of the Securities Purchase Agreement and the Registration Rights Agreement do not purport to be complete and are qualified in their entirety by reference to the full text of the Securities Purchase Agreement and the Registration Rights Agreement, forms of which are attached hereto as Exhibits 99.3 and 99.4 respectively and incorporated herein by reference.

The description of the Stapled Warrants set forth in Item 5 above is incorporated herein by reference. The foregoing description of the Stapled Warrants does not purport to be complete and is qualified in its entirety by reference to the full text of the Stapled Warrants, the form of which is attached hereto as Exhibit 99.5 and incorporated herein by reference.

Other than as described herein, there are no contracts, arrangements, understandings or relationships among the Reporting Persons, or between the Reporting Persons and any other person, with respect to the securities of the Issuer.

### SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** YZILabs Management Ltd.

**Signature:** /s/ Ling Zhang

**Name/Title:** Ling Zhang, Authorized Signatory

**Date:** 12/23/2025

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Changpeng Zhao

**Signature:** /s/ Changpeng Zhao

**Name/Title:** Changpeng Zhao

**Date:** 12/23/2025

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Baucus Sieben Max

**Signature:** /s/ Max Sieben Baucus

**Name/Title:** Max Sieben Baucus

**Date:** 12/23/2025

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Chapman James David

**Signature:** /s/ Ling Zhang

**Name/Title:** Ling Zhang, Attorney-in-fact for David J. Chapman

**Date:** 12/23/2025

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Guillen Goody Teresa Marie

**Signature:** /s/ Ling Zhang

**Name/Title:** Ling Zhang, Attorney-in-fact for Teresa Marie Goody Guillen

**Date:** 12/23/2025

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** He Jiajin

**Signature:** /s/ Ling Zhang

**Name/Title:** Ling Zhang, Attorney-in-fact for Jiajin He

**Date:** 12/23/2025

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Odagiu Alex

**Signature:** /s/ Ling Zhang

**Name/Title:** Ling Zhang, Attorney-in-fact for Alex Odagiu

**Date:** 12/23/2025

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Roszak Matthew

**Signature:** /s/ Ling Zhang

**Name/Title:** Ling Zhang, Attorney-in-fact for Matthew Roszak

**Date:** 12/23/2025

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Zhang Ling

**Signature:** /s/ Ling Zhang

**Name/Title:** Ling Zhang

**Date:** 12/23/2025