# EDGAR Filing Document

**Accession Number:** 0001069394
**File Stem:** 0001493152-26-014305
**Filing Date:** 2026-3
**Character Count:** 5954
**Document Hash:** 5beb055b6b5a1481f3cfc18de432ffa3
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001493152-26-014305.hdr.sgml**: 20260331

**ACCESSION NUMBER**: 0001493152-26-014305

**CONFORMED SUBMISSION TYPE**: NT 10-K

**PUBLIC DOCUMENT COUNT**: 3

**CONFORMED PERIOD OF REPORT**: 20251231

**FILED AS OF DATE**: 20260331

**DATE AS OF CHANGE**: 20260331

**EFFECTIVENESS DATE**: 20260331

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** FLEXIBLE SOLUTIONS INTERNATIONAL INC
- **CENTRAL INDEX KEY:** 0001069394
- **STANDARD INDUSTRIAL CLASSIFICATION:** MISCELLANEOUS CHEMICAL PRODUCTS [2890]
- **ORGANIZATION NAME:** 08 Industrial Applications and Services
- **EIN:** 911922863
- **STATE OF INCORPORATION:** NV
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** NT 10-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-31540
- **FILM NUMBER:** 26823251

**BUSINESS ADDRESS:**
- **STREET 1:** 2614 QUEENSWOOD DR
- **CITY:** VICTORIA B C
- **STATE:** A1
- **ZIP:** V8N 1X5
- **BUSINESS PHONE:** 2504779969

**MAIL ADDRESS:**
- **STREET 1:** 2614 QUEENSWOOD DR
- **CITY:** VICTORIA BC CANADA
- **STATE:** A1
- **ZIP:** V8N 1X5

**U.S. SECURITIES AND EXCHANGE COMMISSION**

**WASHINGTON, D.C. 20549**

SEC File Number ___________

CUSIP Number _____________

**FORM 12b-25**

NOTIFICATION OF LATE FILING

(Check One):

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **☒ Form 10-K** | ☐ Form 20-F | ☐ Form 11-K | ☐ Form 10-Q | ☐ Form 10-D | ☐ Form N-SAR |

---

For Period Ended: December 31, 2025

☐ Transition Report on Form 10-K

☐ Transition Report on Form 10-Q

For the Transition Period Ended: ________________________________

Nothing in this Form shall be construed to imply that the Commission has verified any information contained herein.

Part I - Registrant Information

Full Name of Registrant: **FLEXIBLE SOLUTIONS INTERNATIONAL, INC.**

Former Name if Applicable: N/A

Address of Principal Executive Office (Street and Number)

**6001 54 Ave.**

City, State and Zip Code

**Taber, Alberta, Canada T1G 1X4**

Part II - Rules 12b-25(b) and (c)

If the subject report could not be filed without unreasonable effort or expense and the registrant seeks relief pursuant to Rule 12b-25(b), the following should be completed. (Check box if appropriate)

☒ (a) The
 reasons described in reasonable detail in Part III of this form could not be eliminated without
 unreasonable effort or expense;

☒ (b) The
 subject annual report, semi-annual report, or transition report or portion thereof will be
 filed on or before the fifteenth calendar day following the prescribed due date; or the subject
 quarterly report or transition report on Form l0-K or portion thereof will be filed on or
 before the fifth calendar day following the prescribed due date; and

☒ (c) The
 accountant's statement or other exhibit required by Rule 12b-25(c) has been attached
 if applicable.

Part III - Narrative

State below in reasonable detail the reasons why the Form 10-K, 20-F, 11-K, 10-Q, or N-SAR, or the transition report or portion thereof could not be filed within the prescribed time period.

The delay is due to the Company's inability to provide certain requested documentation and supporting schedules to its independent registered public accounting firm in a timely manner. As a result of this delay in receiving the necessary information, the auditors have not had sufficient time to complete their audit procedures. The Company is working to provide the outstanding documentation and expects to file the Form10-K within the extension period provided by Rule 12b-25.

Part IV - Other Information

&nbsp;&nbsp;&nbsp;&nbsp;(1) Name and telephone
number of person to contact in regard to this notification

<u>William T. Hart</u> <u>(303)</u> <u>839-0061</u> <br> (Name) (Area Code) (Telephone Number)

(2) Have all other periodic reports required under Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding l2 months (or for such shorter period that the registrant was required to file such reports) been filed? If answer is no, identify report(s). <br> ☒ Yes ☐ No

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| | |
|:---|:---|
| (3) | Is it anticipated that any significant change in results of operations from the corresponding period for the last fiscal year will be reflected by the earnings statements to be included in the subject report or portion thereof? |
|  | ☐ Yes ☒ No |
|  | If so: attach an explanation of the anticipated change, both narratively and quantitatively, and, if appropriate, state the reasons why a reasonable estimate of the results cannot be made. |

---

**FLEXIBLE SOLUTIONS INTERNATIONAL, INC.**

(Name of Registrant as specified in charter)

has caused this notification to be signed on its behalf by the undersigned thereunto duly authorized.

---

| | | |
|:---|:---|:---|
| Date: March 31, 2026 | By: | */s/ Daniel O'Brien* |
|  |  | Daniel O'Brien, |
|  |  | Chief Executive Officer |

---

**ATTENTION**

Intentional misstatements or omissions of fact constitute Federal Criminal Violations (See 18 U.S.C. 1001).

## Exhibit 99.1

**EXHIBIT 99.1**

![](ex99-1_001.jpg)

March 31, 2026

Securities and Exchange Commission

100 F Street, N.E.

Washington, D.C. 20549

Re: Flexible Solutions International, Inc. Notification of Late Filing on Form 12b-25

Ladies and Gentlemen:

Pursuant to Rule 12b-25 of the General Rules and Regulations under the Securities Exchange Act of 1934, we inform you that we have been furnished a copy of Form 12b-25, to be filed by Flexible Solutions International, Inc. on March 31, 2026, which contains notification of the registrant's inability to file its Form 10-K by March 31, 2026. We have read the Company's statements contained in Part III therein and we agree with the stated reason as to why we have been unable to complete our audit and report on the Company's consolidated financial statements as of and for the year ended December 31, 2025, to be included in its Form 10-K.

Very truly yours,

/s/ Assure CPA, LLC