# EDGAR Filing Document

**Accession Number:** 0001537137
**File Stem:** 0001193125-26-215757
**Filing Date:** 2026-5
**Character Count:** 116666
**Document Hash:** eb87dd3ce88120a32da3f13656be43cc
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-215757.hdr.sgml**: 20260511

**ACCESSION NUMBER**: 0001193125-26-215757

**CONFORMED SUBMISSION TYPE**: 6-K

**PUBLIC DOCUMENT COUNT**: 62

**CONFORMED PERIOD OF REPORT**: 20260331

**FILED AS OF DATE**: 20260511

**DATE AS OF CHANGE**: 20260511

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** STANDARD LITHIUM LTD.
- **CENTRAL INDEX KEY:** 0001537137
- **STANDARD INDUSTRIAL CLASSIFICATION:** CHEMICALS & ALLIED PRODUCTS [2800]
- **ORGANIZATION NAME:** 08 Industrial Applications and Services
- **EIN:** 000000000
- **STATE OF INCORPORATION:** A1
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 6-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-40569
- **FILM NUMBER:** 26960928

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** SUITE 1625, 1075 W. GEORGIA STREET
- **CITY:** VANCOUVER
- **PROVINCE COUNTRY:** A1
- **ZIP:** V6E 3C9
- **BUSINESS PHONE:** 870-393-2885

**MAIL ADDRESS:**
- **STREET 1:** 3600 N CAPITAL OF TX HWY,
- **STREET 2:** BUILDING B, SUITE 2300
- **CITY:** AUSTIN
- **STATE:** TX
- **ZIP:** 78746

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Patriot Petroleum Corp.
- **DATE OF NAME CHANGE:** 20111213

?xml version='1.0' encoding='ASCII'? 6-K

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM** 6-K

**REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934**

---

| |
|:---|
| For the month of May, 2026 |
| Commission File Number **001-40569** |

---

---

| |
|:---|
| Standard Lithium Ltd. |
| (Translation of registrant's name into English) |

---

---

| |
|:---|
| **Suite 1625, 1075 W Georgia Street**<br>**Vancouver, British Columbia, Canada V6E 3C9** |
| (Address of principal executive offices) |

---

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

Form 20-F ☐ Form 40-F ☒

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**DOCUMENTS INCLUDED AS PART OF THIS REPORT**

Exhibits 99.1 and 99.2 to this Form 6-K of Standard Lithium Ltd. (the "Company") are hereby incorporated by reference as exhibits to the Registration Statements on Form F-10 (File No. 333-289110) and Form S-8 (File No. 333-262400) of the Company, as amended or supplemented.

---

| | |
|:---|:---|
| **Exhibit** |  |
| 99.1 | [<u>Condensed Consolidated Interim Financial Statements for the three months ended March 31, 2026</u>](ck0001537137-ex99_1.htm) |
| 99.2 | [<u>Management's Discussion and Analysis for the three months ended March 31, 2026</u>](ck0001537137-ex99_2.htm) |
| 99.3 | [<u>Form 52-109F2, Certification of Interim Filings (CEO)</u>](ck0001537137-ex99_3.htm) |
| 99.4 | [<u>Form 52-109F2, Certification of Interim Filings (CFO)</u>](ck0001537137-ex99_4.htm) |

---

------

**SIGNATURES**

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

---

| | | | | |
|:---|:---|:---|:---|:---|
|  |  | *Standard Lithium Ltd.* | *Standard Lithium Ltd.* | *Standard Lithium Ltd.* |
|  |  | (Registrant) | (Registrant) | (Registrant) |
| Date: | May 8, 2026 | By: | /s/ Salah Gamoudi | /s/ Salah Gamoudi |
|  |  |  | Name: | Salah Gamoudi |
|  |  |  | Title: | Chief Financial Officer |

---

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## Exhibit 99.1

?xml version='1.0' encoding='ASCII'? EX-99.1

**Exhibit 99.1**

![img144386112_0.jpg](img144386112_0.jpg)

Condensed Consolidated Interim Financial Statements

(Expressed in US dollars - unaudited)

Three months ended March 31, 2026 and 2025

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**STANDARD LITHIUM LTD.**

Condensed Consolidated Interim Statements of Financial Position

As of March 31, 2026 and December 31, 2025

(Expressed in thousands of US dollars - unaudited)

---

| | | | |
|:---|:---|:---|:---|
|  | **Note** | **March 31, 2026** | **December 31, 2025** |
| **ASSETS** |  |  |  |
| **Current assets** |  |  |  |
| Cash |  | $141013 | $152314 |
| Restricted cash |  | 1161 | 1160 |
| Other current assets and receivables |  | 4565 | 4213 |
|  |  | 146739 | 157687 |
| **Non-current assets** |  |  |  |
| Intangible assets |  | 935 | 967 |
| Right of use asset |  | 209 | 257 |
| Property, plant and equipment |  | 976 | 1036 |
| Investment in Aqualung | 5 | 5350 | 5350 |
| Investment in Smackover Lithium | 4 | 185241 | 168868 |
| Financial asset - FID | 9 | 51464 | 52299 |
| Advances and deposits |  | 52 | 52 |
|  |  | 244227 | 228829 |
| **TOTAL ASSETS** |  | $**390966** | $**386516** |
| **LIABILITIES** |  |  |  |
| **Current liabilities** |  |  |  |
| Accounts payable and accrued liabilities |  | $7103 | $9905 |
| Lease liability - short-term |  | 173 | 181 |
|  |  | 7276 | 10086 |
| **Non-current liabilities** |  |  |  |
| Lease liabilities - long-term |  | 39 | 76 |
| Deferred income tax liabilities |  | 20526 | 21799 |
| Decommissioning provision |  | 603 | 597 |
|  |  | 21168 | 22472 |
| **TOTAL LIABILITIES** |  | 28444 | 32558 |
| **SHAREHOLDERS' EQUITY** |  |  |  |
| Share capital | 7 | 419663 | 405173 |
| Reserves | 7 | 36465 | 37299 |
| Accumulated deficit |  | (88985) | (86247) |
| Accumulated other comprehensive loss |  | (4621) | (2267) |
| **TOTAL SHAREHOLDERS' EQUITY** |  | **362522** | **353958** |
| **TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY** |  | $**390966** | $**386516** |

---

**Approved by the Board of Directors and authorized for issue on May 7, 2026.**

<u>*"Robert Cross"*</u>   <u>*"Claudia D'Orazio"*</u> <br> Director Director

*The accompanying notes are an integral part of these condensed consolidated interim financial statements.*

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**STANDARD LITHIUM LTD.**

Condensed Consolidated Interim Statements of Comprehensive Loss

For the three months ended March 31, 2026 and 2025

(Expressed in thousands of US dollars, except share and per share amounts - unaudited)

---

| | | | |
|:---|:---|:---|:---|
|  |  | **Three months ended<br>March 31,** | **Three months ended<br>March 31,** |
|  | **Note** | **2026** | **2025** |
| **Expenses** |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;General and administrative |  | $2147 | $2244 |
| &nbsp;&nbsp;&nbsp;&nbsp;Demonstration Plant operations | 6 | 1306 | 855 |
| &nbsp;&nbsp;&nbsp;&nbsp;Management and directors' fees | 8 | 531 | 477 |
| &nbsp;&nbsp;&nbsp;&nbsp;Share-based compensation | 7 | 1265 | 1420 |
| &nbsp;&nbsp;&nbsp;&nbsp;Separation benefits |  |  | 100 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other |  | 6 | 6 |
| &nbsp;&nbsp;&nbsp;&nbsp;Foreign exchange (gain) loss |  | (2221) | 2 |
| **Loss from operations** |  | 3034 | 5104 |
| &nbsp;&nbsp;&nbsp;&nbsp;Investment loss from Smackover Lithium | 4 | (1502) | (984) |
| &nbsp;&nbsp;&nbsp;&nbsp;Fair value (loss) gain on financial asset – FID | 9 | (836) | 741 |
| &nbsp;&nbsp;&nbsp;&nbsp;Fair value gain on Investment in Aqualung | 5 | 91 | 2990 |
| &nbsp;&nbsp;&nbsp;&nbsp;Interest income |  | 1273 | 250 |
| &nbsp;&nbsp;&nbsp;&nbsp;Interest expense |  | (4) | (10) |
| **Net loss before income taxes** |  | **(4012)** | **(2117)** |
| **Deferred income tax benefit** |  | **1274** | **567** |
| **Net loss** |  | **(2738)** | **(1550)** |
| **Other comprehensive (loss) income** |  |  |  |
| Item that may be reclassified subsequently to income or loss: |  |  |  |
| Currency translation differences of foreign operations |  | (2354) | 20 |
| **Total comprehensive loss** |  | $**(5092)** | $**(1530)** |
| **Weighted average number of common shares outstanding – basic and diluted** |  | **241690043** | **192568062** |
| **Basic and diluted loss per share** |  | $**(0.01)** | $**(0.01)** |

---

*The accompanying notes are an integral part of these condensed consolidated interim financial statements*.

------

**STANDARD LITHIUM LTD.**

Condensed Consolidated Interim Statements of Changes in Equity

For the three months ended March 31, 2026 and 2025

(Expressed in thousands of US dollars, except share amounts - unaudited)

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **Note** | **Number of<br>shares** | **Share<br>capital** | **Reserves** | **Accumulated deficit** | **Accumulated other comprehensive loss** | **Total<br>equity** |
| **December 31, 2024** |  | **188772683** | $**235782** | $**36040** | $**(37849)** | $**(5916)** | $**228057** |
| Share-based compensation |  |  |  | 1420 |  |  | 1420 |
| Shares issued under the ATM | 7 | 4611370 | 7197 |  |  |  | 7197 |
| Share issuance costs |  |  | (204) |  |  |  | (204) |
| Conversion of DSUs to common shares |  | 633071 | 1013 | (1013) |  |  |  |
| Net loss |  |  |  |  | (1550) |  | (1550) |
| Currency translation differences of foreign operations |  |  |  |  |  | 20 | 20 |
| **March 31, 2025** |  | **194017124** | $**243788** | $**36447** | $**(39399)** | $**(5896)** | $**234940** |
| **December 31, 2025** |  | **239705571** | $**405173** | $**37299** | $**(86247)** | $**(2267)** | $**353958** |
| Share-based compensation |  |  |  | 1265 |  |  | 1265 |
| Shares issued under the ATM | 7 | 2222342 | 10821 |  |  |  | 10821 |
| Share issuance costs |  |  | (269) |  |  |  | (269) |
| Conversion of DSUs to common shares |  | 55762 | 54 | (54) |  |  |  |
| Vesting of restricted stock units |  | 495612 | 472 | (472) |  |  |  |
| Options exercised |  | 685000 | 3412 | (1573) |  |  | 1839 |
| Net loss |  |  |  |  | (2738) |  | (2738) |
| Currency translation differences of foreign operations |  |  |  |  |  | (2354) | (2354) |
| **March 31, 2026** |  | **243164287** | $**419663** | $**36465** | $**(88985)** | $**(4621)** | $**362522** |

---

*The accompanying notes are an integral part of these condensed consolidated interim financial statements.*

------

**STANDARD LITHIUM LTD.**

Condensed Consolidated Interim Statements of Cash Flows

For the three months ended March 31, 2026 and 2025

(Expressed in thousands of US dollars - unaudited)

---

| | | | |
|:---|:---|:---|:---|
|  |  | **For the three months<br>ended March 31,** | **For the three months<br>ended March 31,** |
|  | **Note** | **2026** | **2025** |
| **Operating activities** |  |  |  |
| Net loss |  | $(2738) | $(1550) |
| Add items not affecting cash |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Share-based compensation | 7 | 1265 | 1420 |
| &nbsp;&nbsp;&nbsp;&nbsp;Deferred income tax benefit |  | (1274) | (567) |
| &nbsp;&nbsp;&nbsp;&nbsp;Foreign exchange (gain) loss |  | (2153) | 2 |
| &nbsp;&nbsp;&nbsp;&nbsp;Investment loss from Smackover Lithium | 4 | 1502 | 984 |
| &nbsp;&nbsp;&nbsp;&nbsp;Fair value gain on Investment in Aqualung | 5 | (91) | (2990) |
| &nbsp;&nbsp;&nbsp;&nbsp;Fair value loss (gain) on financial asset - FID | 9 | 836 | (741) |
| &nbsp;&nbsp;&nbsp;&nbsp;Amortization |  | 126 | 332 |
| &nbsp;&nbsp;&nbsp;&nbsp;Interest expense |  | 4 | 10 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other |  | 6 | 6 |
| Net changes in non-cash working capital items: |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Other current assets and receivables |  | (376) | (3376) |
| &nbsp;&nbsp;&nbsp;&nbsp;Accounts payable and accrued liabilities |  | (2790) | (30) |
| Net cash used in operating activities |  | (5683) | (6500) |
| **Investing activities** |  |  |  |
| Smackover Lithium capital contributions | 4 | (17875) |  |
| Exploration and evaluation assets |  |  | (3) |
| Purchase of property, plant and equipment |  | (4) |  |
| Change in restricted cash |  | (11) | 58 |
| Patents |  |  | (20) |
| Net cash (used in) provided by investing activities |  | (17890) | 35 |
| **Financing activities** |  |  |  |
| Proceeds from at-the-market equity program ("ATM") | 7 | 10821 | 7197 |
| Exercise of Options | 7 | 1839 |  |
| Share issuance costs | 7 | (269) | (204) |
| Lease payments |  | (47) | (101) |
| Net cash provided by financing activities |  | 12344 | 6892 |
| **Effect of exchange rates on cash** |  | (72) | (35) |
| **Net change in cash** |  | (11301) | 392 |
| **Cash, beginning of period** |  | 152314 | 31177 |
| **Cash, end of period** |  | $**141013** | $**31569** |

---

*The accompanying notes are an integral part of these condensed consolidated interim financial statements.*

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**STANDARD LITHIUM LTD.**

NOTES TO THE CONDENSED CONSOLIDATED INTERIM FINANCIAL STATEMENTS

FOR THE THREE MONTHS ENDED MARCH 31, 2026 AND 2025

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**1.** **Nature of Operations**

Standard Lithium Ltd. ("Standard Lithium" or the "Company") was incorporated under the laws of the Province of British Columbia on August 14, 1998, and was continued under the Canada Business Corporations Act on December 1, 2016. The Company and its subsidiary entities' principal operations are comprised of exploration for, and development of lithium brine properties in the United States of America. The Company also has significant investments in joint venture arrangements for the exploration and evaluation of lithium brine projects and the development of production facilities. The address of the Company's corporate office and principal place of business is Suite 1625, 1075 West Georgia Street, Vancouver, British Columbia, Canada, V6E 3C9. The Company's common shares are listed on the TSX Venture Exchange (the "TSXV") and the NYSE American, LLC ("NYSE") under the symbol "SLI".

**2.** **Basis of Presentation**

**Statement of compliance**

These condensed consolidated interim financial statements have been prepared in accordance with International Accounting Standard 34, Interim Financial Reporting ("IAS 34"), as issued by the International Accounting Standards Board ("IASB"), and do not include all disclosures required under IFRS Accounting Standards. Accordingly, they should be read in conjunction with the Company's audited consolidated financial statements and related notes thereto for the year ended December 31, 2025, which were prepared in accordance with IFRS Accounting Standards as issued by the IASB.

These condensed consolidated interim financial statements have been prepared on a going concern basis.

**Basis of presentation**

These condensed consolidated interim financial statements have been prepared on the historical cost basis except for certain financial instruments and equity investments that are measured at fair value. Financial assets and equity investments classified as fair value through profit or loss are measured at their fair value at each reporting date, with changes in fair value recognized in profit or loss during the period in which they arise. Investments in joint ventures over which the Company has significant influence, but not control, are accounted for using the equity method in accordance with IAS 28 Investments in Associates and Joint Ventures. Such investments are initially recognized at cost and are subsequently adjusted to reflect the Company's share of the investee's profits or losses and distributions received.

These condensed consolidated interim financial statements are presented in the United States dollar ("USD"), and all values are rounded to the nearest thousand except as otherwise indicated. The functional currency of Standard Lithium is the Canadian dollar ("CAD"). For this entity, all transactions not denominated in CAD functional currency are considered to be foreign currency transactions. Foreign currency denominated monetary assets and liabilities are translated using the rate of exchange prevailing at the reporting date. Gains or losses on translation of these items are included in earnings and reported as foreign exchange loss (gain). Foreign currency denominated non-monetary assets and liabilities, measured at historical cost, are translated at the rate of exchange at the transaction date. The functional currency of all subsidiaries is USD. For these entities, all transactions not denominated in USD functional currency are considered to be foreign currency transactions. Foreign currency denominated monetary assets and liabilities are translated using the rate of exchange prevailing at the reporting date. Gains or losses on translation of these items are included in earnings and reported as foreign exchange loss (gain). Foreign currency denominated non-monetary assets and liabilities, measured at historical cost, are translated at the rate of exchange at the transaction date.

**Critical accounting estimates and judgments**

The preparation of financial statements requires management to make judgments, estimates and assumptions that affect the application of policies and reported amounts of assets, liabilities and contingent liabilities as of the date of the financial statements, and the reported amount of revenues and expenses during the reporting period. Estimates and judgments are continuously evaluated and are based on management's experience and other factors, including expectations of future events that are believed to be reasonable under the circumstances. Actual results may differ from these estimates.

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**STANDARD LITHIUM LTD.**

NOTES TO THE CONDENSED CONSOLIDATED INTERIM FINANCIAL STATEMENTS

FOR THE THREE MONTHS ENDED MARCH 31, 2026 AND 2025

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Information about critical judgments in applying accounting policies and assumptions and estimation uncertainties that have the most significant effect on the amounts recognized in the condensed consolidated interim financial statements are disclosed in Note 2 of the Company's consolidated financial statements for the year ended December 31, 2025.

**3.** **Summary of Material Accounting Policies**

The significant accounting policies as disclosed in the Company's consolidated financial statements for the year ended December 31, 2025 have been applied consistently in the preparation of these condensed consolidated interim financial statements.

**Changes in accounting standards**

*New IFRS pronouncements not yet adopted*

In April 2024, IASB issued IFRS 18, *Presentation and disclosure in financial statements* ("IFRS 18"), which replaces IAS 1, Presentation of financial statements. IFRS 18 introduces an updated structure for the statement of income or loss by requiring income and expenses to be presented in three defined categories: operating, investing and financing, and by specifying certain defined totals and subtotals. IFRS 18 also introduces disclosure requirements for management-defined performance measures and provides enhanced guidance on principles of aggregation and disaggregation that apply to the primary financial statements and accompanying notes. The standard does not change the recognition or measurement of items in the financial statements or the classification of items in other comprehensive income.

IFRS 18 is effective for annual reporting periods beginning on or after January 1, 2027, including interim reporting periods. Retrospective application is required and early adoption is permitted. The adoption of IFRS 18 is expected to result in changes to the presentation and disclosure of certain amounts in our consolidated financial statements; however, we do not expect the standard to have a material impact on our consolidated financial position, results of operations or cash flows.

*New IFRS pronouncements recently adopted*

In May 2024, the IASB issued amendments to IFRS 9, *Financial Instruments* and IFRS 7, *Financial Instruments: Disclosures* to respond to recent questions arising in practice, and to include new requirements not only for financial institutions but also for corporate entities. These amendments:

&nbsp;&nbsp;&nbsp;&nbsp;•clarify the date of recognition and derecognition of some financial assets and liabilities, with a new exception for some financial liabilities settled through an electronic cash transfer system;

&nbsp;&nbsp;&nbsp;&nbsp;•clarify and add further guidance for assessing whether a financial asset meets the solely payments of principal and interest criterion;

&nbsp;&nbsp;&nbsp;&nbsp;•add new disclosures for certain instruments with contractual terms that can change cash flows (such as some financial instruments with features linked to the achievement of environment, social and governance targets); and,

&nbsp;&nbsp;&nbsp;&nbsp;•update the disclosures for equity instruments designated at fair value through other comprehensive income.

The Company adopted the amendments effective January 1, 2026. We adopted the exception permitted for qualifying electronic payment systems to derecognize certain financial liabilities on the date payment is initiated rather than the settlement date. The adoption did not have a material impact on the Company's condensed consolidated interim financial statements.

Other accounting standards or amendments to existing accounting standards that have been issued but have future effective dates will either not be relevant to the Company after their effective date or are not expected to have a significant impact on the Company's consolidated financial statements.

**4.** **Equity Method Investment in Smackover Lithium**

On May 7, 2024, the Company and Equinor TDI Holdings LLC ("Equinor"), a Delaware limited liability company, entered into a membership interest purchase and sale agreement (the "Agreement"), in which Equinor acquired interests in two former Standard Lithium wholly-owned subsidiaries, one of which holds the resource development project in southwest

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**STANDARD LITHIUM LTD.**

NOTES TO THE CONDENSED CONSOLIDATED INTERIM FINANCIAL STATEMENTS

FOR THE THREE MONTHS ENDED MARCH 31, 2026 AND 2025

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Arkansas ("South West Arkansas Project") and the other holds prospective lithium brine areas within the Smackover Formation in East Texas (the "East Texas Properties"). The South West Arkansas Project is held through SWA Lithium Financing, LLC and its subsidiary SWA Lithium LLC ("SWA Lithium"), and the East Texas Properties are held through Texas Lithium Financing, LLC ("Texas Lithium"). Each entity forms part of Smackover Lithium ("Smackover Lithium"), the Company's joint venture with Equinor.

Pursuant to the terms of the Agreement, Equinor acquired a 45% interest in each of the former subsidiaries, and the Company retained a 55% interest for an initial cash payment of $30.0 million to the Company and the commitment to invest an additional $130.0 million as follows:

• Equinor solely funded the first $40.0 million and $20.0 million of development costs for SWA Lithium and Texas Lithium, respectively. Additional capital expenditures are funded on a pro-rata basis; and

• Standard Lithium will receive milestone payments of $40.0 million associated with SWA Lithium and $30.0 million associated with Texas Lithium subject to final investment decisions ("FID") being made by January 1, 2027 and January 1, 2029, respectively.

Changes in the Company's investment in Smackover Lithium for the three months ended March 31, 2026 are summarized as follows (in thousands):

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| | | | |
|:---|:---|:---|:---|
|  | **SWA<br>Lithium** | **Texas<br>Lithium** | **Total** |
| **Balance at December 31, 2025** | $105165 | $63703 | $168868 |
| Capital contributions | 9625 | 8250 | 17875 |
| Loss from investment in Smackover Lithium | (1299) | (203) | (1502) |
| **Balance at March 31, 2026** | $**113491** | $**71750** | $**185241** |

---

Summarized financial information for the Company's interest in the Smackover Lithium entities on a 100% basis for the three months ended March 31, 2026 are (in thousands):

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| | | | |
|:---|:---|:---|:---|
|  | **SWA<br>Lithium** | **Texas<br>Lithium** | **Total** |
| Net loss | $2363 | $370 | $2733 |
| Company's share of net loss | $1299 | $203 | $1502 |

---

Summarized financial information for the Company's interest in the Smackover Lithium entities on a 100% basis for the three months ended March 31, 2025 are (in thousands):

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| | | | |
|:---|:---|:---|:---|
|  | **SWA<br>Lithium** | **Texas<br>Lithium** | **Total** |
| Net loss | $1507 | $283 | $1790 |
| Company's share of net loss | $829 | $155 | $984 |

---

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**STANDARD LITHIUM LTD.**

NOTES TO THE CONDENSED CONSOLIDATED INTERIM FINANCIAL STATEMENTS

FOR THE THREE MONTHS ENDED MARCH 31, 2026 AND 2025

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The carrying amount of the Company's investment in the Smackover Lithium entities on a 100% basis as of March 31, 2026 is as follows (in thousands):

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| | | | |
|:---|:---|:---|:---|
|  | **SWA<br>Lithium** | **Texas<br>Lithium** | **Total** |
| Current assets | $20410 | $18253 | $38663 |
| Non-current assets | 89189 | 71960 | 161149 |
| **Total assets** | **109599** | **90213** | **199812** |
| Current liabilities | 5865 | 4857 | 10722 |
| **Total liabilities** | **5865** | **4857** | **10722** |
| **Net assets** | $**103734** | $**85356** | $**189090** |
| Company's share of Smackover Lithium | 57054 | 46946 | 104000 |
| Adjustments to the Company's share of net assets<sup>(1)</sup> | 56437 | 24804 | 81241 |
| **Carrying amount of investment in Smackover Lithium** | $**113491** | $**71750** | $**185241** |

---

(1)Adjustments to the Company's share of net assets include the impact of the initial fair value measurement on May 7, 2024 and the impact of Equinor solely funding $40.0 million and $20.0 million of capital contributions in SWA Lithium and Texas Lithium, respectively.

The carrying amount of the Company's investment in the Smackover Lithium entities on a 100% basis as of December 31, 2025 is as follows (in thousands):

---

| | | | |
|:---|:---|:---|:---|
|  | **SWA<br>Lithium** | **Texas<br>Lithium** | **Total** |
| Current assets | $12741 | $10989 | $23730 |
| Non-current assets | 82994 | 64392 | 147386 |
| **Total assets** | **95735** | **75381** | **171116** |
| Current liabilities | 7139 | 4656 | 11795 |
| **Total liabilities** | **7139** | **4656** | **11795** |
| **Net assets** | $**88596** | $**70725** | $**159321** |
| Company's share of Smackover Lithium | 48728 | 38899 | 87627 |
| Adjustments to the Company's share of net assets<sup>(1)</sup> | 56437 | 24804 | 81241 |
| **Carrying amount of investment in Smackover Lithium** | $**105165** | $**63703** | $**168868** |

---

(1)Adjustments to the Company's share of net assets include the impact of the initial fair value measurement on May 7, 2024 and the impact of Equinor solely funding $40.0 million and $20.0 million of capital contributions in SWA Lithium and Texas Lithium, respectively.

**South West Arkansas Project**

The South West Arkansas Project is maintained pursuant to an option agreement dated December 29, 2017, between TETRA Technologies Inc. ("TETRA") and the Company (the "TETRA Option Agreement"). Pursuant to the TETRA Option Agreement, the Company acquired certain rights to conduct brine exploration and production and for lithium extraction activities in Arkansas.

On October 31, 2023, the aforementioned option was exercised to acquire brine production rights for the exploration and production of lithium, for the South West Arkansas Project, subject to a 2.5% royalty on gross revenue following the commencement of commercial production.

In October 2025, a front-end engineering study ("FEED") and Definitive Feasibility Study ("DFS") were completed for the

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**STANDARD LITHIUM LTD.**

NOTES TO THE CONDENSED CONSOLIDATED INTERIM FINANCIAL STATEMENTS

FOR THE THREE MONTHS ENDED MARCH 31, 2026 AND 2025

------

South West Arkansas Project.

On March 9, 2026, Smackover Lithium entered into a binding take-or-pay offtake agreement with Trafigura Trading LLC ("Trafigura") for the purchase by Trafigura of battery-quality lithium carbonate to be produced from the South West Arkansas Project (the "Trafigura Offtake Agreement"). Under the terms of the Trafigura Offtake Agreement, Smackover Lithium will supply Trafigura with 8,000 metric tons per year of battery-quality lithium carbonate over a 10-year period, beginning at the start of commercial production. Terms of the agreement are structured to support the anticipated financing for the South West Arkansas Project.

**East Texas Properties**

The East Texas Properties include leases for certain properties in East Texas that are prospective for lithium brine development.

On September 24, 2025, Smackover Lithium reported a maiden inferred mineral resource estimate for the Franklin project located within the East Texas Properties (the "Franklin Project"). The Franklin Project represents the initial project of Smackover Lithium's broader East Texas development strategy.

The Company continues to evaluate additional mineral leasehold acquisitions and to advance exploration and development activities within the East Texas Properties through its joint venture arrangements.

**5.** **Investment in Aqualung**

As of March 31, 2026, the Company held an equity investment in Aqualung Carbon Capture AS ("Aqualung"), a privately held entity, which is classified as a financial asset measured at fair value through profit or loss in accordance with IFRS 9, Financial Instruments. The fair value of the investment was determined using observable market-based inputs in accordance with IFRS 13, Fair Value Measurement. Aqualung is engaged in the development of carbon capture technology and is based in Norway with operations in the United States. During the three months ended March 31, 2025, the Company revised its fair value estimate for its investment in Aqualung to $5.4 million to reflect an equity investment transaction that was completed by Aqualung, which the Company did not participate in. The Company recorded a fair value gain of $3.0 million during the three months ended March 31, 2025, primarily as a result of the equity investment transaction.

Changes in the Company's investment in Aqualung for the three months ended March 31, 2026 are as follows (in thousands):

---

| | |
|:---|:---|
| **Balance at December 31, 2025** | $**5350** |
| Effect of change in fair value | 91 |
| Effect of foreign exchange translation | (91) |
| **Balance at March 31, 2026** | $**5350** |

---

------

**STANDARD LITHIUM LTD.**

NOTES TO THE CONDENSED CONSOLIDATED INTERIM FINANCIAL STATEMENTS

FOR THE THREE MONTHS ENDED MARCH 31, 2026 AND 2025

------

**6.** **Demonstration Plant**

The Company operates an industrial scale direct lithium extraction ("DLE") demonstration plant (the "Demonstration Plant") in El Dorado, Arkansas. The Demonstration Plant operation costs are comprised of the following (in thousands):

---

| | | |
|:---|:---|:---|
|  | **Three months ended<br>March 31,** | **Three months ended<br>March 31,** |
|  | **2026** | **2025** |
| Personnel | $984 | $645 |
| Reagents | 19 | 22 |
| Repairs and maintenance | 53 | 31 |
| Supplies | 176 | 98 |
| Test work |  | 3 |
| Office trailer | 15 | 7 |
| Other | 59 | 49 |
| **Total costs** | $**1306** | $**855** |

---

**7.** **Share Capital**

**Authorized capital**

The Company is authorized to issue an unlimited number of common voting shares and preferred shares without nominal or par value.

During the three months ended March 31, 2026 and 2025, the Company had the following equity transactions:

*ATM Share Issuances*

On August 8, 2025, the Company announced the establishment of an at-the-market ("ATM") equity program superseding the Company's previous ATM program, which had been fully utilized, allowing the Company to issue and sell up to $50.0 million of common shares from treasury to the public (the "Current ATM program").

During the three months ended March 31, 2026 the Company issued a total of 2,222,342 common shares under the Current ATM program at an average price of $4.87 per share, for gross and net proceeds of $10.8 million and $10.6 million, respectively.

During the three months ended March 31, 2025, the Company issued a total of 4,611,370 common shares under its previous ATM program at an average price of $1.56 per share. Gross and net proceeds provided were $7.2 million and $7.0 million, respectively. This included 40,000 common shares for which trades were executed on or before March 31, 2025 but settled subsequent to period end. The related receivable is presented within *Other current assets and receivables* on the Company's condensed consolidated interim statements of financial position.

**Options**

The Company has an option plan in place under which it is authorized to grant options ("Options") to its officers, directors, consultants, management and company employees enabling them to cumulatively acquire up to 10% of the issued and outstanding common stock of the Company pursuant to awards issued under the option plan and any other equity compensation arrangements. Under the option plan, the exercise price of each Option shall not be less than the price permitted by the TSXV. The Options can be granted for a maximum term of 10 years and generally have a vesting period of three years.

------

**STANDARD LITHIUM LTD.**

NOTES TO THE CONDENSED CONSOLIDATED INTERIM FINANCIAL STATEMENTS

FOR THE THREE MONTHS ENDED MARCH 31, 2026 AND 2025

------

The weighted average fair value at grant date of Options granted during the three months ended March 31, 2026 and 2025 was $2.07 and $1.08 per Option, respectively. The fair value was determined using the Black-Scholes option-pricing model using the following weighted average assumptions:

---

| | | |
|:---|:---|:---|
|  | **Three months ended<br>March 31,** | **Three months ended<br>March 31,** |
|  | **2026** | **2025** |
| Expected stock price volatility | 76% | 113% |
| Risk-free interest rate | 3.94% | 4.00% |
| Dividend yield |  |  |
| Expected life of Options | 5 years | 5 years |
| Stock price on date of grant | $3.23 | $1.33 |
| Exercise price | $3.23 | $1.33 |
| Forfeiture rate |  |  |

---

The following table summarizes the Option activity for the three months ended March 31, 2026:

---

| | | |
|:---|:---|:---|
|  | **Number<br>of Options** | **Weighted average exercise price** |
| December 31, 2025 | 11678698 | $2.40 |
| Options granted | 1167981 | 3.23 |
| Options exercised | (685000) | 2.83 |
| March 31, 2026 | 12161679 | $2.46 |

---

The following table summarizes Options outstanding and exercisable as of March 31, 2026:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | **Options Outstanding** | **Options Outstanding** | **Options Outstanding** | **Options Exercisable** | **Options Exercisable** |
| **Exercise Price** | **Number of Shares** | **Weighted Average Remaining Contractual Life** | **Weighted Average Exercise Price** | **Number Exercisable** | **Weighted Average Exercise Price** |
| $4.78 | 200000 | 0.30 | $4.78 | 200000 | $4.78 |
| $4.94 | 200000 | 0.93 | $4.94 | 200000 | $4.94 |
| $6.52 | 170000 | 0.96 | $6.52 | 170000 | $6.52 |
| $7.45 | 100000 | 1.03 | $7.45 | 100000 | $7.45 |
| $3.77 | 2690000 | 2.03 | $3.77 | 2690000 | $3.77 |
| $3.85 | 150000 | 2.15 | $3.85 | 150000 | $3.85 |
| $2.97 | 750000 | 2.49 | $2.97 | 583332 | $2.97 |
| $1.07 | 100000 | 3.05 | $1.07 | 50000 | $1.07 |
| $1.13 | 1063394 | 3.36 | $1.13 | 354465 | $1.13 |
| $1.36 | 2000000 | 3.42 | $1.36 | 1333334 | $1.36 |
| $1.42 | 863852 | 3.72 | $1.42 | 487951 | $1.42 |
| $1.35 | 1598853 | 3.99 | $1.35 | 732951 | $1.35 |
| $1.27 | 557599 | 4.00 | $1.27 | 185866 | $1.27 |
| $1.78 | 300000 | 4.23 | $1.78 |  | $1.78 |
| $2.92 | 250000 | 4.39 | $2.92 | 100000 | $2.92 |
| $3.23 | 1167981 | 5.00 | $3.23 |  | $3.23 |
|  | 12161679 | 3.20 | $2.46 | 7337899 | $2.82 |

---

------

**STANDARD LITHIUM LTD.**

NOTES TO THE CONDENSED CONSOLIDATED INTERIM FINANCIAL STATEMENTS

FOR THE THREE MONTHS ENDED MARCH 31, 2026 AND 2025

------

**Long-term Incentive Plan**

The Company has a long-term incentive plan (the "Plan") in accordance with the policies of the TSXV whereby, from time to time at the discretion of the Company's Board of Directors (the "Board"), eligible directors, officers and employees are awarded restricted share units ("RSUs"). The RSUs that are subject to, among other things, the recipient's deferral right in accordance with the *Income Tax Act* (Canada) convert automatically into common shares upon vesting. In addition, the Company may issue deferred share units ("DSUs"). DSUs may be redeemed upon retirement or termination from the Company. In accordance with the Plan, the aggregate number of common shares to be issued shall not exceed 10% of the Company's issued and outstanding common shares at any given time when combined with the aggregate number of Options, RSUs and DSUs issued pursuant to the Plan and any other equity compensation arrangements.

The following table summarizes the RSU activity for the three months ended March 31, 2026:

---

| | | |
|:---|:---|:---|
|  | **Number<br>of RSUs** | **Weighted average grant date fair value**<sup>(1)</sup> |
| December 31, 2025 | 2491231 | $1.27 |
| Granted | 802543 | 3.23 |
| Vested | (495612) | 1.33 |
| March 31, 2026 | 2798162 | $1.82 |

---

(1)Grant-date fair value represents the closing market price of the Company's common shares on the date of grant.

The following table summarizes the DSU activity for the three months ended March 31, 2026:

---

| | | |
|:---|:---|:---|
|  | **Number<br>of DSUs** | **Weighted average grant date fair value**<sup>(1)</sup> |
| December 31, 2025 | 1993725 | $2.36 |
| Granted | 216720 | 3.23 |
| Conversion of DSUs to common shares | (55762) | 1.35 |
| March 31, 2026 | 2154683 | $2.47 |

---

(1)Grant-date fair value represents the closing market price of the Company's common shares on the date of grant.

**Share-based compensation expense**

Share-based compensation recorded for each type of award is as follows (in thousands):

---

| | | |
|:---|:---|:---|
|  | **Three months ended<br>March 31,** | **Three months ended<br>March 31,** |
|  | **2026** | **2025** |
| Options | $680 | $888 |
| RSUs | 425 | 344 |
| DSUs | 160 | 188 |
| **Total** | $**1265** | $**1420** |

---

------

**STANDARD LITHIUM LTD.**

NOTES TO THE CONDENSED CONSOLIDATED INTERIM FINANCIAL STATEMENTS

FOR THE THREE MONTHS ENDED MARCH 31, 2026 AND 2025

------

**8.** **Related Party Transactions**

Key management personnel are persons responsible for planning, directing and controlling the activities of the entity, which are the directors and officers of the Company.

Compensation to key management is comprised of the following (in thousands):

---

| | | |
|:---|:---|:---|
|  | **Three months ended<br>March 31,** | **Three months ended<br>March 31,** |
|  | **2026** | **2025** |
| Management and director fees<sup>(1)</sup> | $531 | $477 |
| Share-based compensation | 810 | 1173 |
|  | $**1341** | $**1650** |

---

(1)Management and director fees are comprised of salaries, bonuses, benefits and directors' fees included on the Company's interim condensed consolidated statement of comprehensive loss.

Related party receivables are included in *Other current assets and receivables* and related party payables are included in *Accounts payable and accrued liabilities* on the Company's consolidated statements of financial position. The balances of related party receivables and payables as of the periods indicated are as follows (in thousands).

---

| | | |
|:---|:---|:---|
|  | **March 31, 2026** | **December 31, 2025** |
| Receivables |  |  |
| &nbsp;&nbsp;&nbsp;Smackover Lithium<sup>(1)</sup> | $1905 | $3226 |
| &nbsp;&nbsp;&nbsp;Total | $1905 | $3226 |
| Accounts payable and accrued liabilities |  |  |
| &nbsp;&nbsp;&nbsp;Smackover Lithium<sup>(2)</sup> | $4700 | $4700 |
| &nbsp;&nbsp;&nbsp;Management and directors<sup>(3)</sup> | 359 | 2160 |
| &nbsp;&nbsp;&nbsp;Total | $5059 | $6860 |

---

(1)Amounts due from the Smackover Lithium entities represent receivables for reimbursement of costs paid by the Company on behalf of these entities.

(2)Accounts payable and accrued liabilities due to Smackover Lithium as of March 31, 2026 and December 31, 2025 represents $4.0 million of cash received from Smackover Lithium and is held by the Company in a separate account and designated for working capital needs and is currently due. In addition, a $0.7 million payable, related to a cash collateralized letter of credit that is held by the Company on behalf of Smackover Lithium, was outstanding as of March 31, 2026 and December 31, 2025.

(3)Amounts due to management and directors primarily include accrued management and director compensation. As of March 31, 2026, the balance of $0.3 million primarily includes accrued incentive compensation earned during the period. As of December 31, 2025, the balance of $2.2 million primarily reflects accrued incentive compensation for the full year, amounts payable to a director relating to funds received during the period, and expense reimbursements payable to management.

**9.** **Financial Instruments and Financial Risk Management**

Fair value is the exchange price that would be received for an asset or paid to transfer a liability in an orderly transaction between market participants. In arriving at a fair value measurement, the Company uses a fair value hierarchy based on three levels of inputs, of which the first two are considered observable and the last unobservable. The three levels of inputs used to establish fair value are the following:

Level 1 – quoted prices (unadjusted) in active markets for identical assets or liabilities;

------

**STANDARD LITHIUM LTD.**

NOTES TO THE CONDENSED CONSOLIDATED INTERIM FINANCIAL STATEMENTS

FOR THE THREE MONTHS ENDED MARCH 31, 2026 AND 2025

------

Level 2 – inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly for similar items in active markets; and

Level 3 – inputs for the asset or liability that are not based on observable market data (unobservable inputs).

The Company's policy is to recognize transfers into and out of fair value hierarchy levels at the end of the reporting period.

There were no transfers between Levels 1, 2 and 3 during the periods ended March 31, 2026 and December 31, 2025, respectively.

The following tables set forth the Company's financial assets measured at fair value by level within the fair value hierarchy for the periods indicated (in thousands):

---

| | | | | |
|:---|:---|:---|:---|:---|
| **March 31, 2026** | **Level 1** | **Level 2** | **Level 3** | **Total** |
| Financial asset – FID<sup>(1)</sup> | $— | $— | $51464 | $51464 |
| Investment in Aqualung |  |  | 5350 | 5350 |

---

------

(1)Includes $31.2 million and $20.2 million related to SWA Lithium and Texas Lithium, respectively.

---

| | | | | |
|:---|:---|:---|:---|:---|
| **December 31, 2025** | **Level 1** | **Level 2** | **Level 3** | **Total** |
| Financial asset – FID<sup>(1)</sup> | $— | $— | $52299 | $52299 |
| Investment in Aqualung |  |  | 5350 | 5350 |

---

------

(1)Includes $31.4 million and $20.9 million related to SWA Lithium and Texas Lithium, respectively.

*Financial Asset – FID*

The Financial asset – FID is measured at fair value using a probability weighted discounted cash flow methodology. The valuation incorporates probability weighted scenarios reflecting the expected timing of achievement of FID in either SWA Lithium or Texas Lithium, and applies a discount rate derived from the S&P corporate bond yield curve based on the credit rating of its counterparty. If FID is not determined at SWA Lithium by January 1, 2027, or at Texas Lithium by January 1, 2029, such contingent Financial assets will be subject to termination, pending potential negotiations between the Company and its joint venture partner, Equinor.

During the three months ended March 31, 2026, the Company recorded a fair value loss on Financial asset – FID of $0.8 million, including a loss of $0.1 million for SWA Lithium and a loss of $0.7 million for Texas Lithium.

For SWA Lithium, updated assumptions regarding expected timing of milestone achievement and taking of FID, and a resultant increase in discounting, led to a decrease in fair value during the period; however, this decrease was largely offset by the positive effects of continued advancement of project development activities, causing a net decrease in fair value of approximately $0.1 million.

For Texas Lithium, updated assumptions regarding expected timelines of milestone achievement and taking FID, and a resultant increase in discounting, resulted in a decrease in fair value of approximately $0.7 million during the period. These updated assumptions reflect the anticipated sequencing of development activities following advancement of SWA Lithium, consistent with the Company's project execution strategy, and represent revisions to expected milestone timing rather than a change in the overall probability of achieving FID.

During the three months ended March 31, 2025, the Company recorded a fair value gain on Financial asset – FID of $0.7 million. The change in fair value was primarily attributable to the passage of time.

------

**STANDARD LITHIUM LTD.**

NOTES TO THE CONDENSED CONSOLIDATED INTERIM FINANCIAL STATEMENTS

FOR THE THREE MONTHS ENDED MARCH 31, 2026 AND 2025

------

*Investment in Aqualung*

The Company's investment in Aqualung is measured at fair value on a recurring basis. Information relating to Aqualung is considered when determining its fair value. In addition to company-specific information, the Company takes into account trends in general market conditions and the share performance of comparable publicly-traded companies when valuing privately-held investments. During the three months ended March 31, 2026, the Company recorded a fair value gain of $0.1 million resulting from foreign exchange translation effects. For the three months ended March 31, 2025, the Company recorded a fair value gain of $3.0 million primarily as a result of an equity financing transaction completed by Aqualung in which the Company did not participate.

The Board has overall responsibility for the establishment and oversight of the Company's risk management framework. The Company's risk management policies are established to identify and analyze the risks faced by the Company, to set appropriate risk limits and controls, and to monitor risks and adherence to limits. Risk management policies and systems are reviewed regularly to reflect changes in market conditions and in response to the Company's activities. Management regularly monitors compliance with the Company's risk management policies and procedures and reviews the adequacy of the risk management framework in relation to the risks faced by the Company.

The Company is exposed to various risks such as interest rate, credit, and liquidity risk. To manage these risks, management determines what activities must be undertaken to minimize potential exposure to risks. The objectives of the Company in managing risk are as follows:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;•maintaining sound financial condition;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;•financing operations; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;•ensuring liquidity to all operations.

To satisfy these objectives, the Company monitors and manages these financial exposures as an integral part of its overall risk management program.

(i) <u>Credit risk</u>

Credit risk is the risk of loss if counterparties do not fulfill their contractual obligations and arises principally from the Company's cash deposits and financial asset – FID. The Company's maximum credit risk is equal to the carrying amount of its financial assets, including cash and financial asset – FID. The Company maintains substantially all of its cash with two financial institutions. The majority of cash held with these institutions exceeds the amount of insurance provided on such deposits.

(ii) <u>Liquidity risk</u>

Liquidity risk is the risk that the Company will not be able to meet its financial obligations as they come due. The Company manages this risk by careful management of its working capital (current assets less current liabilities) to try to ensure its expenditures will not exceed available resources. As of March 31, 2026 and December 31, 2025, the Company had working capital of $139.5 million and $147.6 million, respectively.

As of March 31, 2026 and December 31, 2025, accounts payable and accrued liabilities are generally due within one year.

As of March 31, 2026 and December 31, 2025 lease liabilities' undiscounted contractual cash flows, including interest payments, are due within the next three years, respectively.

------

**STANDARD LITHIUM LTD.**

NOTES TO THE CONDENSED CONSOLIDATED INTERIM FINANCIAL STATEMENTS

FOR THE THREE MONTHS ENDED MARCH 31, 2026 AND 2025

------

(iii) <u>Foreign exchange risk</u>

Foreign exchange risk is the risk that the Company's financial instruments will fluctuate in value as a result of movement in foreign exchange rates. The Company does not use derivative instruments to reduce its exposure to foreign currency risk. The Company is exposed to currency risk through the following assets and liabilities denominated in USD (in thousands):

---

| | | |
|:---|:---|:---|
|  | **March 31, 2026** | **December 31, 2025** |
| Cash | $134127 | $142339 |
| Investment in Aqualung | 5350 | 5350 |
| Accounts receivable | 1555 | 322 |
| Accounts payable |  | 99 |

---

The Company's primary exposure to foreign exchange risk arises from USD-denominated cash balances held by CAD-functional entities. At March 31, 2026, US dollar amounts were converted at a rate of USD 1.00 to CAD 1.39424. A 10% increase or decrease in the US dollar relative to the Canadian dollar would result in a change of approximately $13.4 million in the Company's comprehensive loss for the year to date. At December 31, 2025, US dollar amounts were converted at a rate of USD 1.00 to CAD 1.371. A 10% increase or decrease in the US dollar relative to the Canadian dollar would result in a change of approximately $14.2 million in the Company's comprehensive loss for the year to date.

**10.** **Capital Management**

The Company had $141.0 million in cash as of March 31, 2026.

On May 7, 2024, the Company entered into strategic partnerships with Equinor, in which the Company received an initial cash payment of $30.0 million and a commitment by Equinor to invest up to an additional gross $130.0 million in exchange for a 45% interest in each Smackover Lithium entity, respectively. Included in Equinor's commitment to provide up to $130.0 million in consideration are sole funding commitments of $60.0 million post entrance into Smackover Lithium. These sole funding contributions by Equinor were fulfilled in the second quarter of 2025.

The Company's objectives when managing capital are to safeguard the Company's ability to pursue the exploration and development of its projects and to maintain a flexible capital structure. The Company's current capital structure is made up of common equity, with no long term or revolving debt obligations.

As the Company is currently in the exploration and development phase, none of its financial instruments are exposed to commodity price risk; however, the Company's ability to obtain long-term financing and its economic viability may be affected by commodity price volatility.

The Company may adjust how it manages its capital structure in light of changes in economic conditions and the risk characteristics of the underlying assets.

In order to carry out planned exploration and development of its projects and pay for administrative costs, the Company plans to spend its existing cash balance and may utilize other forms of financing.

Management reviews its capital management approach on an ongoing basis and believes that this approach, given the relative size of the Company and its stage of development, is appropriate.

**11.** **Contingencies**

On January 27, 2022, a putative securities class action lawsuit was filed against the Company and certain former executives in the United States District Court for the Eastern District of New York, captioned Gloster v. Standard Lithium Ltd., et al., 22-cv-0507 (E.D.N.Y.) (the "Action"). The complaint purports to seek relief on behalf of a class of investors who purchased or otherwise acquired the Company's publicly traded securities between May 19, 2020 and November 17, 2021, and asserts violations of Section 10(b) of the U.S. Securities Exchange Act of 1934, as amended (the "Exchange Act") against all defendants and Section 20(a) of the Exchange Act against the individually-named defendants. On April 27, 2022, the court

------

**STANDARD LITHIUM LTD.**

NOTES TO THE CONDENSED CONSOLIDATED INTERIM FINANCIAL STATEMENTS

FOR THE THREE MONTHS ENDED MARCH 31, 2026 AND 2025

------

granted Curtis T. Arata's motion for appointment as lead plaintiff in the Action. Lead plaintiff filed an amended complaint on June 29, 2022, adding Andrew Robinson as a defendant and extending the class period to February 3, 2022. The amended complaint alleges, among other things, that during the proposed class period, defendants misrepresented and/or failed to disclose certain facts regarding the Company's LiSTR DLE technology and "final product lithium recovery percentage" at its DLE Demonstration Plant in southern Arkansas. The amended complaint seeks various forms of relief, including monetary damages in an unspecified amount. Defendants filed a motion to dismiss the amended complaint on August 10, 2022, which became fully briefed on September 28, 2022. On September 28, 2025, the court dismissed the amended complaint in full. On October 29, 2025, the plaintiff filed a notice of appeal, which is expected to be fully briefed by May 13, 2026. As of March 31, 2026, the Company has not recorded any provision associated with this matter, as there is no probable outflow that can be reasonably determined at this time.

**12.** **Subsequent Events**

Subsequent to March 31, 2026, the Company undertook the following significant events:

**ATM Share Issuances**

The Company issued 491,880 common shares at an average price of $3.77 per share, under the Current ATM Program, providing gross and net proceeds of $1.9 million and $1.8 million, respectively.

------

## Exhibit 99.2

**Exhibit 99.2**

![img145309633_0.jpg](img145309633_0.jpg)

**Management's Discussion and Analysis**

**FOR THE THREE MONTHS ENDED MARCH 31, 2026**

------

**STANDARD LITHIUM LTD.**

**Management's Discussion and Analysis**

For the Three Months Ended March 31, 2026 and 2025

**introduction**

The following management's discussion and analysis ("MD&A") was prepared by management of Standard Lithium Ltd. based on information available as of May 8, 2026 and should be reviewed in conjunction with the unaudited condensed consolidated interim financial statements and related notes thereto for the three months ended March 31, 2026 and the audited consolidated financial statements and the notes thereto for the year ended December 31, 2025. The unaudited condensed consolidated interim financial statements have been prepared in accordance with International Accounting Standard 34, *Interim Financial Reporting* ("IAS 34"). All dollar figures are expressed in United States dollars ("USD") unless otherwise noted. These documents and additional information are available on the System for Electronic Document Analysis and Retrieval Plus ("SEDAR+") at www.sedarplus.ca and on the Electronic Data Gathering, Analysis, and Retrieval system ("EDGAR") at www.sec.gov.

References in this MD&A to "Standard Lithium", "we", "our" and "us" mean Standard Lithium Ltd.

Additional information, including our annual information form for the year ended December 31, 2025 (the "AIF"), is available under our SEDAR+ profile at www.sedarplus.ca and on EDGAR at www.sec.gov. Unless indicated, additional external information, and documents referenced within this MD&A, do not form part of this MD&A.

**Forward-Looking Information**

Except for statements of historical fact, this MD&A contains certain "forward-looking statements" within the meaning of the United States Private Securities Litigation Reform Act of 1995 and "forward-looking information" within the meaning of applicable Canadian securities legislation (collectively referred to herein as "forward-looking information"). The forward-looking information relates to future events or our future performance. All statements, other than statements of historical fact, may be forward-looking information. Information concerning mineral resource and mineral reserve estimates also may be deemed to be forward-looking information in that it reflects a prediction of mineralization that would be encountered if a mineral deposit were developed and mined. Forward-looking information generally can be identified by the use of words such as "seek", "anticipate", "plan", "continue", "estimate", "expect", "may", "will", "project", "predict", "propose", "potential", "target", "intend", "could", "might", "should", "would", "believe", "scheduled", "implement" and similar words or expressions. These statements involve known and unknown risks, uncertainties and other factors that may cause actual results or events to differ materially from those anticipated in such forward-looking information.

In particular, this MD&A contains forward-looking information, including, without limitation, with respect to the following matters or our expectations relating to such matters: our planned exploration, research and development programs (including, but not limited to, plans and expectations regarding advancement, testing and operation of the lithium extraction at our direct lithium extraction ("DLE") demonstration plant (the "Demonstration Plant"); commercial opportunities for lithium products; timing and delivery of studies; filing of technical reports; expected results of exploration; accuracy of mineral or resource exploration activity; ability to secure further leasehold positions and perform further exploration drilling; accuracy of mineral reserves or mineral resources estimates, including the ability to develop and realize such estimates; whether mineral resources will ever be developed into mineral reserves, and information and underlying assumptions related thereto; our budget estimates and expected expenditures on our properties; anticipated timelines for a Final Investment Decision ("FID") and production at the resource development project in southwest Arkansas (the "South West Arkansas Project"); regulatory or government requirements or approvals; the reliability of third party information; continued existence and success of any joint ventures; continued access to mineral properties or infrastructure; payments and share issuances pursuant to property agreements; fluctuations in the market for lithium and its derivatives; expected timing of the expenditures; performance of our business and operations; changes in exploration costs and government regulation in Canada and the United States ("U.S."); competition for, among other things, capital, customers, acquisitions, undeveloped lands and skilled personnel; changes in commodity prices and exchange rates; currency and interest rate fluctuations; our funding requirements and ability to raise capital; geopolitical instability; war (such as U.S. military intervention in Iran and Russia's invasion of Ukraine); and other factors or information.

Forward-looking information does not take into account the effect of transactions or other items announced or occurring after the statements are made. Forward-looking information is based upon a number of expectations and assumptions and is subject to a number of risks and uncertainties, many of which are beyond our control, that could cause actual results to differ materially from those that are disclosed in or implied by such forward-looking information. With respect to

------

**STANDARD LITHIUM LTD.**

**Management's Discussion and Analysis**

For the Three Months Ended March 31, 2026 and 2025

forward-looking information listed above, we have made assumptions regarding, among other things: current technological trends; ability to fund, advance and develop our properties; our ability to operate in a safe and effective manner; uncertainties with respect to receiving, and maintaining, mining, exploration, environmental and other permits; impacts of changes in current and future trade agreements, legislation, regulations, import tariffs and other similar trade barriers, increases in geo-political tension and tension with respect to lithium, pricing and demand for lithium, including that such demand is supported by growth in the energy security and storage market and the electric vehicle market; impact of increasing competition; commodity prices, currency rates, interest rates and general economic conditions; the legislative, regulatory and community environments in the jurisdictions where we operate; impact of unknown financial contingencies; continued existence and success of joint ventures; market prices for lithium products; budgets and estimates of capital and operating costs; estimates of mineral resources and mineral reserves; reliability of technical data; the ability to negotiate access agreements on commercially reasonable terms, anticipated timing and results of operation and development; inflation; and the impacts of war (such as U.S. military intervention in Iran and Russia's invasion of Ukraine) on us and our business. Although we believe that the assumptions and expectations reflected in such forward-looking information are reasonable, we can give no assurance that these assumptions and expectations will prove to be correct. Since forward-looking information inherently involves risks and uncertainties, undue reliance should not be placed on such information.

Forward-looking statements and forward-looking information involve known and unknown risks, uncertainties and other factors that may cause our actual results, performance or achievements to differ materially from those expressed or implied. Such factors include, but are not limited to: general economic conditions in Canada, the United States and globally; industry conditions, including the state of the energy security and storage market and the electric vehicle market; governmental regulation of the mining industry, including environmental regulation and permitting; geological, technical and drilling problems; unanticipated operating events; negotiation of commercial access agreements; competition for and/or inability to retain drilling rigs and other services; inability to obtain capital, undeveloped lands, skilled personnel, equipment and inputs; inability to secure customer offtake agreements on economically favorable terms; reliance on third parties; potential or ongoing joint ventures; availability of capital on acceptable terms; the need to obtain required regulatory approvals; uncertainties associated with estimating mineral resources and mineral reserves, including the assumptions underlying such estimates and whether mineral resources will ever be converted into mineral reserves; uncertainties in estimating capital and operating costs, cash flows and other project economics; environmental liabilities and other risks inherent in mineral extraction operations; health and safety risks; unknown financial contingencies, including litigation costs; unanticipated results of exploration activities; unpredictable weather conditions; delays in preparing technical studies, including a pre-feasibility study for the Franklin Project in the northeast region of Texas (the "Franklin Project"); inability to generate profitable operations; restrictive covenants in debt instruments; lack of additional financing on acceptable terms; intellectual property risks; stock market volatility; commodity price volatility; inflation; risks related to war (such as U.S. military intervention in Iran and Russia's invasion of Ukraine) and geopolitical instability; changes in tax laws and incentive programs relating to the mining industry; conflicts of interest; dependency on key personnel; and fluctuations in currency and interest rates, as well as the risks discussed in the section entitled "Risk Factors" in the AIF.

Although we have attempted to identify important factors that could cause actual actions, events or results to differ materially from those described in forward-looking information, there may be other factors that cause actions, events or results to differ from those anticipated, estimated or intended.

Readers are cautioned that the foregoing lists of factors are not exhaustive. All forward-looking information in this MD&A speaks as of the date of this MD&A. We do not undertake any obligation to update or revise any forward-looking information, whether as a result of new information, future events or otherwise, except as required by law. All forward-looking information contained in this MD&A is expressly qualified in its entirety by this cautionary statement. Additional information about these assumptions, risks and uncertainties is contained in our filings with securities regulators, including our most recent AIF, which are available on SEDAR+ at www.sedarplus.ca and EDGAR at www.sec.gov.

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**STANDARD LITHIUM LTD.**

**Management's Discussion and Analysis**

For the Three Months Ended March 31, 2026 and 2025

**CAUTIONARY NOTES TO U.S. INVESTORS CONCERNING RESOURCE ESTIMATES**

This MD&A has been prepared in accordance with the requirements of the securities laws in effect in Canada, which differ from the requirements of the securities laws in effect in the U.S. In particular, and without limiting the generality of the foregoing, the terms "mineral reserve", "proven mineral reserve", "probable mineral reserve", "inferred mineral resources", "indicated mineral resources", "measured mineral resources" and "mineral resources" used or referenced in this MD&A are Canadian mineral disclosure terms as defined in accordance with National Instrument 43-101 – Standards of Disclosure for Mineral Projects ("NI 43-101") under the guidelines set out in the 2014 Canadian Institute of Mining, Metallurgy and Petroleum Standards for Mineral Resources and Mineral Reserves, Definitions and Guidelines, May 2014 (the "CIM Standards"). The CIM Standards differ from the mineral property disclosure requirements of the U.S. Securities and Exchange Commission (the "SEC") in Regulation S-K Subpart 1300 (the "SEC Modernization Rules") under the U.S. Securities Act of 1933, as amended.

As a foreign private issuer that is eligible to file reports with the SEC pursuant to the multi-jurisdictional disclosure system, we are not required to provide disclosure on our mineral properties under the SEC Modernization Rules and will continue to provide disclosure under NI 43-101 and the CIM Standards. Accordingly, our disclosure of mineralization and other technical information may differ significantly from the information that would be disclosed had we prepared the information under the standards adopted under the SEC Modernization Rules.

**summary of Standard lithium's business**

We are a near-commercial lithium exploration and development company focused on the sustainable development of a portfolio of lithium-brine bearing properties in the U.S. We prioritize brine projects characterized by high-grade resources, robust existing local infrastructure, available skilled labor, and streamlined permitting. We aim to achieve sustainable, commercial-scale lithium production via the application of scalable and fully integrated DLE and purification processes. Recognized as a critical mineral by the U.S. Geological Survey, the U.S. Department of Energy and the Department of War, lithium holds strategic importance for energy security, the rapidly expanding energy storage sector, including standby power solutions, and electric vehicles.

Our primary focus is on projects within the Smackover Formation in southern Arkansas and in East Texas: the resource development project in southwest Arkansas (the "South West Arkansas Project") and the development of prospective lithium brine areas within the Smackover Formation in East Texas, which includes the Franklin Project (the "East Texas Properties"). The South West Arkansas Project is strategically located in the Smackover Formation in southern Arkansas, a region with a long-standing and established industry of mineral extraction from brine.

The South West Arkansas Project is held through SWA Lithium Financing, LLC and its subsidiary, SWA Lithium LLC ("SWA Lithium"), and the East Texas Properties are held through Texas Lithium Financing, LLC ("Texas Lithium"). Each entity forms part of Smackover Lithium ("Smackover Lithium"), our joint venture with Equinor TDI Holdings LLC and certain of its subsidiaries ("Equinor"), in which Standard Lithium holds a 55% ownership interest and Equinor holds a 45% ownership interest.

**CORPORATE SUMMARY**

We were incorporated under the laws of the Province of British Columbia on August 14, 1998, and were continued under the *Canada Business Corporations Act* on December 1, 2016. Our principal operations are comprised of exploration for and development of lithium brine properties in the U.S. We also have significant investments in joint venture arrangements for the exploration, evaluation and development of lithium brine production facilities. Our corporate office address and principal place of business is Suite 1625, 1075 West Georgia Street, Vancouver, British Columbia, Canada, V6E 3C9. Our common shares are listed on the TSX Venture Exchange and NYSE American, LLC under the symbol "SLI".

**HIGHLIGHTS FOR THE THREE MONTHS ENDED MARCH 31, 2026**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;•On March 16, 2026, we announced the engagements of The Walsh Group, LLC, led by its Principal, General Robert S. Walsh, USMC (Ret.) and Global Mineral Strategies, led by its Managing Director, Mr. Gary Stanley, as strategic advisors.

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**STANDARD LITHIUM LTD.**

**Management's Discussion and Analysis**

For the Three Months Ended March 31, 2026 and 2025

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;•On March 9, 2026, we announced that Smackover Lithium entered into a binding take-or-pay offtake agreement with Trafigura Trading LLC ("Trafigura") for the purchase by Trafigura of battery-quality lithium carbonate to be produced from the South West Arkansas Project (the "Trafigura Offtake Agreement"). Under the terms of the Trafigura Offtake Agreement, Smackover Lithium will supply Trafigura with 8,000 metric tons per year of battery-quality lithium carbonate over a 10-year period, beginning at the start of commercial production. Terms of the Trafigura Offtake Agreement are structured to support the anticipated financing for the South West Arkansas Project.

**Project Overview**

Standard Lithium currently has the following material projects:

**South West Arkansas Project**

The South West Arkansas Project is being developed in partnership with Equinor, a multi-national energy company, encompasses approximately 30,000 net mineral acres of brine leases and is a key project in our portfolio due to its scale and the quality of its lithium-brine resource. SWA Lithium completed a Definitive Feasibility Study ("DFS") in October of 2025 for the South West Arkansas Project after finalizing a Front-End Engineering Study ("FEED"). On March 9, 2026, SWA Lithium also entered in the Trafigura Offtake Agreement, further advancing the commercial framework supporting the South West Arkansas Project. Construction is expected to commence in 2026, shortly after taking FID, and is anticipated to require approximately two to three years to construct and commission.

Please refer to the technical report titled "South West Arkansas Project NI 43-101 Technical Report & Definitive Feasibility Study, Arkansas, United States" dated effective September 3, 2025, as filed on October 14, 2025 on our SEDAR+ profile at www.sedarplus.ca and on EDGAR at www.sec.gov for further information with respect to the DFS of the South West Arkansas Project.

**Franklin Project within the East Texas Properties**

The Franklin Project, located within our broader East Texas Properties, is currently the only material project within our East Texas portfolio with a defined mineral resource estimate. On September 24, 2025, Smackover Lithium announced a maiden inferred mineral resource estimate for the Franklin Project in East Texas. The Franklin Project comprises approximately 2.2 million metric tons of lithium carbonate equivalent at an average lithium concentration of 668 mg/L, together with significant bromide and potash by-products. The Franklin Project represents the first step in advancing the Smackover Lithium's East Texas development strategy, which targets scalable lithium chemical production through phased expansion.

The Franklin Project forms part of a larger land position referred to as the East Texas Properties, where we, in partnership with Equinor, are acquiring mineral rights and conducting exploration for prospective lithium brine resources. The East Texas Properties are held through Texas Lithium as part of Smackover Lithium. Exploration drilling and testing results published in October 2023 from certain areas within the East Texas Properties demonstrated average lithium concentrations of 644 mg/L, with a highest concentration in brine of 806 mg/L, highlighting the potential for globally significant lithium resource concentrations in the areas being explored.

While the Franklin Project represents the current focus of technical disclosure and resource definition within the East Texas Properties, we plan to continue securing additional mineral leasehold positions and conducting further exploration, development and de-risking programs across the broader East Texas land position.

Please refer to the technical report titled "NI 43-101 Technical Report: Maiden Inferred Resource Estimate for Standard Lithium Ltd.'s Franklin Project, Hopkins, Franklin and Titus Counties, Texas, United States" dated effective September 24, 2025, as filed on November 5, 2025 on our SEDAR+ profile at www.sedarplus.ca and on EDGAR at www.sec.gov for further information with respect to the Franklin Technical Report.

**Other Projects**

*Lanxess Property Project*

We pursued a project in southern Arkansas at the LANXESS Corporation ("LANXESS") South facility near El Dorado,

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**STANDARD LITHIUM LTD.**

**Management's Discussion and Analysis**

For the Three Months Ended March 31, 2026 and 2025

Arkansas, which was centered on the development of the first phase of the project (the "Lanxess 1A Project"). Development was governed by an amended and restated memorandum of understanding with LANXESS which has since been terminated by mutual agreement.

*Demonstration Plant*

We continue to successfully operate an industrial-scale DLE Demonstration Plant at the LANXESS bromine production site near El Dorado, Arkansas. The Demonstration Plant has been in operation for approximately six years and serves as a testing and optimization facility, as well as a training facility for future potential operators at our South West Arkansas and East Texas Properties. Activities at the Demonstration Plant are governed by a site services agreement with LANXESS, which was renewed on January 12, 2026, effective January 1, 2026.

*California Properties*

We have further interests in certain mineral leases and option agreements in the Mojave Desert in San Bernardino County, California (the "California Properties").

**ENVIRONMENTAL**

We are firmly committed to the responsible production of sustainable lithium chemicals, essential for critical minerals security, energy storage system development, and electric vehicle manufacturing. Our project selection process underscores this dedication, opting, where feasible, to use existing infrastructure, roads, rail, water, and power within well-established industrial areas with a history of timber harvesting, oil, gas, and brine industries. Implementing DLE technology is aimed at ensuring an environmentally responsible approach, offering a reduced surface footprint and decreasing environmental impacts when compared to traditional evaporation pond methods and hard-rock lithium mining operations.

Beyond our main operations, our environmental ethos is also evident. In September 2021, our collaboration with Aqualung Carbon Capture AS ("Aqualung") marked a significant step in advancing carbon capture technology. This partnership solidified in May 2022 when we made an investment in Aqualung. This was followed by a master service agreement (the "MSA") with Telescope Innovations Corp. ("Telescope"), signaling our intent to further investigate the possible applications of captured carbon dioxide (CO2) in various chemical processes, emphasizing our forward-thinking approach to environmental sustainability.

**SOCIAL RESPONSIBILITY AND COMMUNITY RELATIONS**

We remain committed to supporting communities as a central element of our operations. In support of the communities surrounding the South West Arkansas Project, our initiatives include participating in STEM events with local school districts, supporting local non-profits and charities, and collaborating with LiTHIUM LEARNS and LiTHIUM WORKS on workforce development, technical training and education initiatives related to the lithium industry in the South Arkansas region. Additionally, we have taken part in music festivals, holiday events, and Independence Day celebrations. These initiatives reflect our ongoing dedication to fostering positive relationships and contributing to the cultural and social vitality of the regions in which we operate.

To further support local workforce development, we have established partnerships with educational institutions such as South Arkansas College, Southern Arkansas University, and the University of Arkansas Hope-Texarkana. These collaborations aim to enhance training programs that prepare community members for specialized roles within our projects. Currently, we employ 32 staff members in South Arkansas, including engineers, operators, technicians, and administrative staff, predominantly from nearby communities. This strategy emphasizes our commitment to local employment and economic development.

In support of the communities surrounding our operations in East Texas, initiatives include contributions to local non-profits and charities and remain focused on engaging local stakeholders to ensure the benefits of our projects are shared with surrounding communities. We have remained actively engaged with county judges and city officials in the area to provide updates on project activities and foster open communication. During the first quarter of 2026, we also engaged with the

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**STANDARD LITHIUM LTD.**

**Management's Discussion and Analysis**

For the Three Months Ended March 31, 2026 and 2025

Northeast Texas Community College and met with the superintendents of local school districts as part of our ongoing community outreach efforts.

**OVERALL PERFORMANCE AND RESULTS OF OPERATIONS**

***Comparison of Three Months Ended March 31, 2026 and 2025***

*The following table sets forth our results of operations for the three months ended March 31, 2026 and 2025 (in thousands).*

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| | | |
|:---|:---|:---|
|  | **Three months ended March 31,** | **Three months ended March 31,** |
|  | **2026** | **2025** |
| **Expenses** |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;General and administrative | $2147 | $2244 |
| &nbsp;&nbsp;&nbsp;&nbsp;Demonstration Plant operations | 1306 | 855 |
| &nbsp;&nbsp;&nbsp;&nbsp;Management and directors' fees | 531 | 477 |
| &nbsp;&nbsp;&nbsp;&nbsp;Share-based compensation | 1265 | 1420 |
| &nbsp;&nbsp;&nbsp;&nbsp;Separation benefits |  | 100 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other | 6 | 6 |
| &nbsp;&nbsp;&nbsp;&nbsp;Foreign exchange (gain) loss | (2221) | 2 |
| **Loss from operations** | 3034 | 5104 |
| &nbsp;&nbsp;&nbsp;&nbsp;Investment loss from Smackover Lithium | (1502) | (984) |
| &nbsp;&nbsp;&nbsp;&nbsp;Fair value (loss) gain on financial asset – FID | (836) | 741 |
| &nbsp;&nbsp;&nbsp;&nbsp;Fair value gain on Investment in Aqualung | 91 | 2990 |
| &nbsp;&nbsp;&nbsp;&nbsp;Interest income | 1273 | 250 |
| &nbsp;&nbsp;&nbsp;&nbsp;Interest expense | (4) | (10) |
| **Net loss before income taxes** | (4012) | (2117) |
| **Deferred income tax benefit** | **1274** | **567** |
| **Net loss** | $**(2738)** | $**(1550)** |

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*Revenue*

As of March 31, 2026, we have not generated any revenue.

*General and administrative costs*

General and administrative costs are associated with our Vancouver, BC corporate head office, the El Dorado office in Arkansas, the Austin office in Texas and related back-office professional and corporate costs.

General and administrative costs were $2.1 million for the three months ended March 31, 2026, representing a slight decrease from $2.2 million for the three months ended March 31, 2025.

*Demonstration Plant operations*

Demonstration Plant operating costs relate to personnel, supplies, reagents, site office, utilities, repairs and maintenance, vehicles, waste, disposal and recycling fees, and ongoing testing expenses. Demonstration Plant costs were $1.3 million for the three months ended March 31, 2026, as compared to $0.9 million for the three months ended March 31, 2025. The $0.4 million, or 53%, increase was driven by higher personnel and supplies costs associated with research and development

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**STANDARD LITHIUM LTD.**

**Management's Discussion and Analysis**

For the Three Months Ended March 31, 2026 and 2025

activities related to our proprietary SiFT technology, together with maintenance and site improvement activities at the Demonstration Plant.

*Management and directors' fees*

Management and directors' fees include salaries, bonuses, benefits and directors' fees to key management personnel. Management and directors' fees were $0.5 million for the three months ended March 31, 2026, consistent with $0.5 million for the three months ended March 31, 2025, reflecting stable compensation levels and no significant changes in headcount.

*Share-based compensation*

Share-based compensation was $1.3 million for the three months ended March 31, 2026 as compared to $1.4 million for the three months ended March 31, 2025. The $0.1 million, or 11%, decrease primarily reflects the recognition in the prior quarter of the full expense related to an option grant that vested immediately, partially offset by incremental expense from awards granted during 2025 and 2026.

*Foreign exchange (gain) loss*

We recorded foreign exchange gain of $2.2 million and loss of $2.0 thousand for the three months ended March 31, 2026 and 2025, respectively. The foreign exchange gain during the three months ended March 31, 2026 primarily reflects remeasurement gains on USD-denominated cash balances held by one of our Canadian-dollar functional currency entities, resulting from movements in the USD relative to the Canadian dollar during the period. Higher USD cash balances increased our exposure to foreign exchange fluctuations relative to the three months ended March 31, 2025, which reflected lower USD cash balances and more limited currency movements and resulted in an immaterial foreign exchange loss.

*Fair value loss (gain) on financial asset – FID*

During the three months ended March 31, 2026, we recorded a fair value loss on our financial asset – FID of $0.8 million including a loss of $0.1 million for SWA Lithium and a loss of $0.7 million for Texas Lithium.

For SWA Lithium, updated assumptions regarding expected timing of milestone achievement and taking of FID, and a resultant increase in discounting, led to a decrease in fair value during the period; however, this decrease was largely offset by the positive effects of continued advancement of project development activities, causing a net decrease in fair value of approximately $0.1 million.

For Texas Lithium, updated assumptions regarding expected timelines of milestone achievement and taking FID, and a resultant increase in discounting, resulted in a decrease in fair value of approximately $0.7 million during the period. These updated assumptions reflect the anticipated sequencing of development activities following advancement of SWA Lithium, consistent with our project execution strategy, and represent revisions to expected milestone timing rather than a change in the overall probability of achieving FID.

During the three months ended March 31, 2025, we recorded a fair value gain of $0.7 million on our financial asset – FID. The change in fair value was primarily attributable to the passage of time.

*Investment loss from Smackover Lithium*

During the three months ended March 31, 2026 and 2025, we recorded investment losses from Smackover Lithium of $1.5 million and $1.0 million, respectively. The increase was primarily attributable to higher expenditures at SWA Lithium in connection with commercial and financing initiatives, including associated legal and advisory services, as well as increased corporate and administrative support costs as project development activities progressed. Texas Lithium also experienced higher costs during the period, primarily reflecting increased personnel, consulting, and operational support as activities

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**STANDARD LITHIUM LTD.**

**Management's Discussion and Analysis**

For the Three Months Ended March 31, 2026 and 2025

advanced. These expenditures were expensed by SWA Lithium and Texas Lithium in accordance with their accounting policies and are reflected in our share of loss under the equity method of accounting.

*Fair value gain on Investment in Aqualung*

During the three months ended March 31, 2026, we recorded a fair value gain of $0.1 million resulting from foreign exchange translation effects. For the three months ended March 31, 2025, we recorded a fair value gain of $3.0 million primarily as a result of an equity financing transaction completed by Aqualung in which we did not participate.

*Interest income*

We earned $1.3 million and $0.3 million of interest income, net of fees primarily from interest earned on cash balances held in savings accounts during the three months ended March 31, 2026 and 2025, respectively. The $1.0 million increase was driven primarily by a higher average cash balance during the period, reflecting proceeds from financing activities, and the resultant interest earned on the higher cash balance.

*Deferred income tax benefit*

We had a deferred income tax benefit of $1.3 million and $0.6 million for the three months ended March 31, 2026 and 2025, respectively. The income tax benefit for the three months ended March 31, 2026 and the three months ended March 31, 2025 was primarily driven by the loss before income taxes for the periods.

*Net loss*

We had a net loss of $2.7 million for the three months ended March 31, 2026, as compared to net loss of $1.6 million for the three months ended March 31, 2025. During the three months ended March 31, 2026, our net loss was primarily due to losses on our Financial Asset — FID and investment loss from Smackover Lithium, partially offset by a foreign exchange gain and interest income recognized during the period. During the three months ended March 31, 2025, net loss was primarily driven by ongoing development-stage operating costs. This was partially offset by a fair value gain recognized on our Investment in Aqualung, arising from an equity transaction completed by Aqualung in which we did not participate.

**SHARE ISSUANCES**

*ATM Share Issuances*

On August 8, 2025, we announced the establishment of an at-the-market ("ATM") equity program allowing us to issue and sell up to $50.0 million of common shares from treasury to the public (the "Current ATM program").

During the three months ended March 31, 2026, we issued a total of 2,222,342 common shares under the Current ATM program which superseded our previous ATM (the "Previous ATM program") at an average price of $4.87 for gross and net proceeds of $10.8 million and $10.6 million, respectively.

During the three months ended March 31, 2025, we issued a total of 4,611,370 common shares under the Previous ATM program at an average price of $1.56 per share. Gross and net proceeds provided were $7.2 million and $7.0 million, respectively. This included 40,000 common shares for which trades were executed prior to March 31, 2025 but settled subsequent to period end, and generated gross and net proceeds of $51.4 thousand and $50.1 thousand, respectively. The related receivable is presented within Other current assets on our condensed consolidated interim statements of financial position.

*Other Share Issuances*

During the three months ended March 31, 2026, we issued 685,000 common shares upon the exercise of options ("Options") at a weighted average exercise price of $2.83.

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**STANDARD LITHIUM LTD.**

**Management's Discussion and Analysis**

For the Three Months Ended March 31, 2026 and 2025

During the three months ended March 31, 2026, we issued 495,612 common shares upon the vesting of restricted share units ("RSUs") and 55,762 common shares upon the conversion of deferred share units ("DSUs") to Shares.

**EQUITY GRANTS**

During the three months ended March 31, 2026, we granted 1,167,981 Options, 802,543 RSUs, and 216,720 DSUs to directors, management and employees of Standard Lithium.

During the three months ended March 31, 2025, we granted 2,156,452 Options, 1,463,192 RSUs, and 501,856 DSUs to directors, management and employees of Standard Lithium.

**SUMMARY OF QUARTERLY RESULTS**

The following table presents selected unaudited condensed consolidated interim financial information for the last eight quarters and has been prepared in accordance with IAS 34, as issued by the International Accounting Standards Board ("IASB"). These condensed consolidated interim financial statements should be read in conjunction with the audited consolidated financial statements for the year ended December 31, 2025, which have been prepared in accordance with International Financial Reporting Standards as issued by the IASB ("IFRS Accounting Standards"), stated in U.S. dollars (in thousands):

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| | | | | |
|:---|:---|:---|:---|:---|
| **Quarter Ended** | **Total Revenues** | **Net Income (Loss)** | **Earnings (Loss)<br>Per Share - Basic** | **Earnings (Loss)<br>Per Share - Diluted** |
| June 30, 2024 | $— | $128279 | $0.70 | $0.69 |
| September 30, 2024 | $— | $(4829) | $(0.03) | $(0.03) |
| December 31, 2024 | $— | $(24682) | $(0.13) | $(0.13) |
| March 31, 2025 | $— | $(1550) | $(0.01) | $(0.01) |
| June 30, 2025 | $— | $(4982) | $(0.03) | $(0.03) |
| September 30, 2025 | $— | $(6121) | $(0.03) | $(0.03) |
| December 31, 2025 | $— | $(35745) | $(0.15) | $(0.15) |
| March 31, 2026 | $— | $(2738) | $(0.01) | $(0.01) |

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Net income (loss) has fluctuated across recent quarters, primarily due to a combination of one-time and non-cash items, including gains from deconsolidation events, fair value adjustments and impairment charges. In the second quarter of 2024, we reported net income largely driven by a gain on the deconsolidation of subsidiaries and a fair value gain on a financial asset recognized in connection with Equinor acquiring a 45% interest in the Smackover Lithium entities. These gains were only partially offset by ongoing operating expenses.

In contrast, the fourth quarter of 2024 saw a return to a net loss position, primarily attributable to an impairment expense related to our California Properties.

The net loss narrowed again in the first quarter of 2025, supported by a fair value gain recognized on our investment in Aqualung following an equity transaction completed by Aqualung in which we did not participate. This gain partially offset continuing development-stage operating costs and helped mitigate the overall loss for the period.

The net loss further increased during the second and third quarters of 2025. During the third quarter of 2025, general and administrative expenses increased as we accelerated activities on our projects, including the completion of the DFS for the South West Arkansas Project and publishing the maiden inferred mineral resource estimate for the Franklin Project. Additionally, there was a reduction of fair value gain recognized on financial assets associated with the probability of achieving FID at our South West Arkansas Project given minimal changes in the probability assessment during the quarter.

The net loss further increased during the fourth quarter of 2025, largely attributable to an impairment expense related to our Lanxess Property Project. The non-cash charge reflected a reassessment of the carrying value in light of strategic and capital allocation considerations.

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**STANDARD LITHIUM LTD.**

**Management's Discussion and Analysis**

For the Three Months Ended March 31, 2026 and 2025

The net loss continued in the first quarter of 2026, primarily driven by an investment loss from Smackover Lithium and losses on our Financial Asset — FID, partially offset by a foreign exchange gain and interest income recognized during the period.

Overall, fluctuations in net income (loss) over these quarters primarily reflect the timing and impact of strategic transactions, fair value accounting adjustments, and asset impairments, rather than changes in core operating performance.

**LIQUIDITY AND CAPITAL RESOURCES**

We do not have a mineral property in commercial production and consequently do not receive revenue from the sale of lithium-based products. We currently have no operations that generate cash flow. We have financed our operations primarily through the issuance of common shares. Our continued operations are dependent on our ability to complete sufficient equity, debt or other financings or to generate cash flow.

We had working capital of $139.5 million and $147.6 million as of March 31, 2026 and December 31, 2025, respectively. Cash at March 31, 2026 and December 31, 2025 totaled $141.0 million and $152.3 million, respectively.

*Cash flows*

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| | | |
|:---|:---|:---|
|  | **For the three months ended March 31,** | **For the three months ended March 31,** |
|  | **2026** | **2025** |
| Net cash used in operating activities | $(5683) | (6500) |
| Net cash (used in) provided by investing activities | (17890) | 35 |
| Net cash provided by financing activities | 12344 | 6892 |
| Effect of exchange rates on cash | (72) | (35) |
| **Net change in cash** | (11301) | 392 |
| **Cash, beginning of period** | 152314 | 31177 |
| **Cash, end of period** | $**141013** | $**31569** |

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During the three months ended March 31, 2026, we had a net cash outflow of $11.3 million, primarily driven by $17.9 million of capital contributions to advance the development of Smackover Lithium, along with $5.7 million of operating expenditures primarily related to Demonstration Plant operations and back-office professional and corporate costs. These cash outflows were partially offset by financing cash inflows of $12.3 million, primarily attributable to proceeds from the issuance of common shares under our Current ATM program and proceeds received in connection with the exercise of Options.

During the three months ended March 31, 2025, we had a net cash inflow of $0.4 million primarily driven by $7.0 million in net proceeds from the issuance of common shares under our Previous ATM program. These inflows were offset by expenditures related to Demonstration Plant testing and operations and back-office support functions.

**Contractual Obligations**

Contractual obligations are as follows (in thousands):

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | **Payments due by periods** | **Payments due by periods** | **Payments due by periods** | **Payments due by periods** | **Payments due by periods** |
|  | **Total** | **Less than<br>1 year** | **1 – 3<br>years** | **4 – 5<br>years** | **After<br>5 years** |
| Obligations Under Office Leases | $212 | $173 | $39 | $— | $— |
| Other Obligations | 1149 | 109 | 931 | 109 |  |
| **Total** | $1361 | $282 | $970 | $109 | $— |

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Management expects to have sufficient access to capital to continue advancing toward FID for Phase 1 of our South West Arkansas Project and for currently budgeted operations through March 31, 2027 via cash held on our balance sheet and alternative forms of financing. However, we expect that additional sources of capital will be required in order to take FID and begin construction at Phase 1 of the South West Arkansas Project, and to continue expanding our leasehold position

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**STANDARD LITHIUM LTD.**

**Management's Discussion and Analysis**

For the Three Months Ended March 31, 2026 and 2025

and de-risking of the East Texas Properties. These activities may be funded through equity or debt financings, non-core asset sales, non-dilutive funding sources, or other financing alternatives in order to achieve our development objectives. There can be no certainty that such additional funds may be raised on a timely basis or on terms acceptable to us when required.

Other than our normal business activities, we do not know of any trends, demands, commitments, events or uncertainties that will result in, or that are reasonably likely to result in, our liquidity and capital resources either materially increasing or decreasing at present or in the foreseeable future. We do not engage in currency hedging to offset any risk of currency fluctuations.

**LITIGATION MATTERS**

On January 27, 2022, a putative securities class action lawsuit was filed against us and certain former executives in the United States District Court for the Eastern District of New York, captioned Gloster v. Standard Lithium Ltd., et al., 22-cv-0507 (E.D.N.Y.) (the "Action"). The complaint purports to seek relief on behalf of a class of investors who purchased or otherwise acquired our publicly traded securities between May 19, 2020 and November 17, 2021, and asserts violations of Section 10(b) of the U.S. Securities Exchange Act of 1934, as amended (the "Exchange Act") against all defendants and Section 20(a) of the Exchange Act against the individually-named defendants. On April 27, 2022, the court granted Curtis T. Arata's motion for appointment as lead plaintiff in the Action. Lead plaintiff filed an amended complaint on June 29, 2022, adding Andrew Robinson as a defendant and extending the class period to February 3, 2022. The amended complaint alleges, among other things, that during the proposed class period, defendants misrepresented and/or failed to disclose certain facts regarding our LiSTR DLE technology and "final product lithium recovery percentage" at our DLE Demonstration Plant in southern Arkansas. The amended complaint seeks various forms of relief, including monetary damages in an unspecified amount. Defendants filed a motion to dismiss the amended complaint on August 10, 2022, which became fully briefed on September 28, 2022. On September 28, 2025, the court dismissed the amended complaint in full. On October 29, 2025, the plaintiff filed a notice of appeal, which is expected to be fully briefed by May 13, 2026. As of March 31, 2026, we have not recorded any provision associated with this matter, as there is no probable outflow that can be reasonably determined at this time.

**TRANSACTIONS WITH RELATED PARTIES**

Key management personnel are our directors and officers, who are responsible for planning, directing and controlling our activities.

Compensation to key management is comprised of the following (in thousands):

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| | | |
|:---|:---|:---|
|  | **Three months ended<br>March 31,** | **Three months ended<br>March 31,** |
|  | **2026** | **2025** |
| Management and director fees<sup>(1)</sup> | $531 | $477 |
| Share-based compensation | 810 | 1173 |
|  | $**1341** | $**1650** |

---

(1) Management and director fees are comprised of salaries, bonuses, benefits and directors' fees included on our interim condensed consolidated statement of comprehensive loss.

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**STANDARD LITHIUM LTD.**

**Management's Discussion and Analysis**

For the Three Months Ended March 31, 2026 and 2025

Related party receivables are included in *Other current assets and receivables* and related party payables are included in *Accounts payable and accrued liabilities* on our consolidated statements of financial position. The balances as of the periods indicated are as follows (in thousands):

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| | | |
|:---|:---|:---|
|  | **March 31, 2026** | **December 31, 2025** |
| Receivables |  |  |
| &nbsp;&nbsp;&nbsp;Smackover Lithium<sup>(1)</sup> | $1905 | $3226 |
| &nbsp;&nbsp;&nbsp;Total | $1905 | $3226 |
| Accounts payable and accrued liabilities |  |  |
| &nbsp;&nbsp;&nbsp;Smackover Lithium<sup>(2)</sup> | $4700 | $4700 |
| &nbsp;&nbsp;&nbsp;Management and directors<sup>(3)</sup> | 359 | 2160 |
| &nbsp;&nbsp;&nbsp;Total | $5059 | $6860 |

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(1)Amounts due from the Smackover Lithium entities represent receivables for reimbursement of costs paid by us on behalf of these entities.

(2)Accounts payable and accrued liabilities due to Smackover Lithium as of March 31, 2026 and December 31, 2025 represents $4.0 million cash received from Smackover Lithium and is held by us in a separate account and designated for working capital needs and is currently due. In addition, a $0.7 million payable, related to a cash collateralized letter of credit that is held by us on behalf of Smackover Lithium, was outstanding as of March 31, 2026 and December 31, 2025.

(3)Amounts due to management and directors primarily include accrued management and director compensation. As of March 31, 2026, the balance of $0.3 million primarily includes accrued incentive compensation earned during the period. As of December 31, 2025, the balance of $2.2 million primarily reflects accrued incentive compensation for the full year, amounts payable to a director relating to funds received during the period, and expense reimbursements payable to management.

**OUTSTANDING SHARE DATA**

Our authorized capital consists of an unlimited number of common shares and preferred shares without nominal or par value.

As of the date of this MD&A, there were 243,656,167 common shares issued and outstanding, and 12,161,679 Options, 2,154,683 DSUs and 2,798,162 RSUs outstanding.

**OFF-BALANCE SHEET ARRANGEMENTS**

We do not have any off-balance sheet arrangements that have or are reasonably likely to have a current or future effect on our financial condition, changes in financial condition, revenues or expenses, results of operations, liquidity, capital expenditures or capital resources that are material to investors.

**CRITICAL ACCOUNTING ESTIMATES AND JUDGMENTS**

The preparation of the financial statements requires management to make judgments, estimates and assumptions that affect the application of policies and reported amounts of assets, liabilities, and contingent liabilities as of the date of the financial statements and the reported amount of revenues and expenses during the reporting period. Estimates and judgments are continuously evaluated and are based on management's experience and other factors, including expectations of future events that are believed to be reasonable under the circumstances. Actual results may differ from these estimates.

The critical accounting estimates used in the preparation of our condensed consolidated interim financial statements for the three months ended March 31, 2026 are the same as the key sources of estimation uncertainty disclosed in Note 2 of our consolidated financial statements for the year ended December 31, 2025.

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**STANDARD LITHIUM LTD.**

**Management's Discussion and Analysis**

For the Three Months Ended March 31, 2026 and 2025

**FINANCIAL INSTRUMENTS AND RISK MANAGEMENT**

Financial assets and liabilities are recognized when we become a party to the contractual provisions of the financial instrument. Financial assets are derecognized when the rights to receive cash flows from the assets have expired or have been transferred and we have transferred substantially all risks and rewards of ownership. Our financial instruments consist of cash, restricted cash, receivables, long-term investments, financial assets, accounts payable and accrued liabilities. All of our financial instruments are classified into financial assets and liabilities measured at amortized cost, other than our investment in Aqualung and the Financial Asset - FID, which are carried at fair value. All financial instruments are initially measured at fair value plus, in the case of items measured at amortized cost, transaction costs that are directly attributable to the acquisition or issue of the financial asset or financial liability. For additional details about our financial instruments please refer to Note 9 of the unaudited condensed consolidated interim financial statements for the three months fiscal period ended March 31, 2026.

**DISCLOSURE CONTROLS AND PROCEDURES**

Disclosure controls and procedures are designed to provide reasonable assurance that material information is gathered and reported to management, as appropriate to allow for timely decisions regarding required public disclosure.

As described below, in our assessment of the effectiveness of our internal control over financial reporting as of March 31, 2026, management has concluded that, as of the end of the period covered by this MD&A, disclosure controls and procedures are designed effectively to ensure that information required to be disclosed in reports that we file or submit are (i) recorded, processed, summarized and reported within the time periods specified in the applicable Canadian securities laws and SEC rules and forms, and (ii) accumulated and communicated to our management, as appropriate to allow timely decisions regarding required public disclosure. Management believes the financial statements fairly represent in all material respects our financial condition, results of operations and cash flows at and for the periods presented in accordance with IFRS Accounting Standards.

**MANAGEMENT'S REPORT ON INTERNAL CONTROLS OVER FINANCIAL REPORTING**

Management is responsible for establishing and maintaining adequate internal controls over financial reporting as such term is defined in the rules of the National Instrument 52-109 – *Certification of Disclosure in Issuers' Annual and Interim Filings* in Canada and Rules 13a-15(f) and 15d-15(f) of the Exchange Act in the U.S. Our internal controls over financial reporting are designed to provide reasonable assurance regarding the reliability of our financial reporting for external purposes in accordance with IFRS Accounting Standards.

An evaluation of our internal controls over financial reporting as of March 31, 2026 was conducted based on the Committee of Sponsoring Organizations of the Treadway Commission's Internal Control—Integrated Framework (2013).

There have been no changes in our internal control over financial reporting that occurred during the three months ended March 31, 2026, that have materially affected or are reasonably likely to materially affect our internal control over financial reporting.

**LIMITATION OF CONTROLS AND PROCEDURES**

Management believes that any disclosure controls and procedures or internal controls over financial reporting, no matter how well designed and operated, have their inherent limitations. Due to those limitations (resulting from unrealistic or unsuitable objectives, human judgment in decision making, human errors, management overriding internal control, circumventing controls by the individual acts of some persons, by collusion of two or more persons, external events beyond the entity's control), internal control can only provide reasonable assurance that the objectives of the control system are met.

The design of a control system must reflect the fact that there are resource constraints, and the benefits of controls must be considered relative to their costs. Due to the inherent limitations in a cost-effective control system, misstatements due to error or fraud may occur and not be detected.

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**STANDARD LITHIUM LTD.**

**Management's Discussion and Analysis**

For the Three Months Ended March 31, 2026 and 2025

**RISK FACTORS**

There are a number of risks that may have a material and adverse impact on our future operating and financial performance and could cause our operating and financial performance to differ materially from the estimates described in our forward-looking information. These risks include widespread risks associated with any form of business and specific risks associated with our business and involvement in the lithium exploration and development industry. Readers are advised to review and consider risk factors disclosed in the AIF available under our profile on SEDAR+ at www.sedarplus.ca and on EDGAR at www.sec.gov.

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## Exhibit 99.3

**Exhibit 99.3**

**Form 52-109F2**

***Certification of Interim Filings***

***Full Certificate***

I, **David Park, Chief Executive Officer** of **Standard Lithium Ltd.**, certify the following:

1. ***Review:*** I have reviewed the interim financial report and interim MD&A (together, the "interim filings") of **Standard Lithium Ltd.** (the "issuer") for the interim period ended March 31, 2026.

2. ***No misrepresentations:*** Based on my knowledge, having exercised reasonable diligence, the interim filings do not contain any untrue statement of a material fact or omit to state a material fact required to be stated or that is necessary to make a statement not misleading in light of the circumstances under which it was made, with respect to the period covered by the interim filings.

*3.* ***Fair presentation:*** Based on my knowledge, having exercised reasonable diligence, the interim financial report together with the other financial information included in the interim filings fairly present in all material respects the financial condition, financial performance and cash flows of the issuer, as of the date of and for the periods presented in the interim filings.

4.***Responsibility:*** The issuer's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (DC&P) and internal control over financial reporting (ICFR), as those terms are defined in National Instrument 52-109 — *Certification of Disclosure in Issuers' Annual and Interim Filings,* for the issuer.

5.***Design:*** Subject to the limitations, if any, described in paragraphs 5.2 and 5.3, the issuer's other certifying officer(s) and I have, as at the end of the period covered by the interim filings

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) designed DC&P, or caused it to be designed under our supervision, to provide reasonable assurance that

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) material information relating to the issuer is made known to us by others, particularly during the period in which the interim filings are being prepared; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) information required to be disclosed by the issuer in its annual filings, interim filings or other reports filed or submitted by it under securities legislation is recorded, processed, summarized and reported within the time periods specified in securities legislation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) designed ICFR, or caused it to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with the issuer's GAAP.

5.1 ***Control framework:*** The control framework the issuer's other certifying officer(s) and I used to design the issuer's ICFR is the Internal Control-Integrated Framework (2013) published by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).

5.2 ***ICFR – material weakness relating to design:*** N/A

5.3 ***Limitation on scope of design:*** N/A

6. ***Reporting changes in ICFR:*** The issuer has disclosed in its interim MD&A any change in the issuer's ICFR that occurred during the period beginning on January 1, 2026 and ended on March 31, 2026 that has materially affected, or is reasonably likely to materially affect, the issuer's ICFR.

Date: May 8, 2026

*<u>"David Park"</u>*

David Park

Chief Executive Officer

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## Exhibit 99.4

**Exhibit 99.4**

**Form 52-109F2**

***Certification of Interim Filings***

***Full Certificate***

I, **Salah Gamoudi, Chief Financial Officer** of **Standard Lithium Ltd.**, certify the following:

1. ***Review:*** I have reviewed the interim financial report and interim MD&A (together, the "interim filings") of **Standard Lithium Ltd.** (the "issuer") for the interim period ended March 31, 2026.

2. ***No misrepresentations:*** Based on my knowledge, having exercised reasonable diligence, the interim filings do not contain any untrue statement of a material fact or omit to state a material fact required to be stated or that is necessary to make a statement not misleading in light of the circumstances under which it was made, with respect to the period covered by the interim filings.

*3.* ***Fair presentation:*** Based on my knowledge, having exercised reasonable diligence, the interim financial report together with the other financial information included in the interim filings fairly present in all material respects the financial condition, financial performance and cash flows of the issuer, as of the date of and for the periods presented in the interim filings.

4.***Responsibility:*** The issuer's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures ("DC&P") and internal control over financial reporting ("ICFR"), as those terms are defined in National Instrument 52-109 — *Certification of Disclosure in Issuers' Annual and Interim Filings,* for the issuer.

5.***Design:*** Subject to the limitations, if any, described in paragraphs 5.2 and 5.3, the issuer's other certifying officer(s) and I have, as at the end of the period covered by the interim filings

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) designed DC&P, or caused it to be designed under our supervision, to provide reasonable assurance that

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) material information relating to the issuer is made known to us by others, particularly during the period in which the interim filings are being prepared; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) information required to be disclosed by the issuer in its annual filings, interim filings or other reports filed or submitted by it under securities legislation is recorded, processed, summarized and reported within the time periods specified in securities legislation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) designed ICFR, or caused it to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with the issuer's GAAP.

5.1 ***Control framework:*** The control framework the issuer's other certifying officer(s) and I used to design the issuer's ICFR is the Internal Control-Integrated Framework (2013) published by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).

5.2 ***ICFR – material weakness relating to design:*** N/A

5.3 ***Limitation on scope of design:*** N/A

6. ***Reporting changes in ICFR:*** The issuer has disclosed in its interim MD&A any change in the issuer's ICFR that occurred during the period beginning on January 1, 2026 and ended on March 31, 2026 that has materially affected, or is reasonably likely to materially affect, the issuer's ICFR.

Date: May 8, 2026

*<u>"Salah Gamoudi"</u>*

Salah Gamoudi

Chief Financial Officer

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