6-K

UNITED STATES

SECURITIES **** AND **** EXCHANGECOMMISSION

Washington, **** D.C. **** 20549

FORM 6-K

REPORT **** OF **** FOREIGN **** PRIVATEISSUER ****

PURSUANT TO RULE13a-16 OR 15d-16

UNDER THESECURITIES EXCHANGEACT OF 1934

For the month of May 2025

Commission File  Number: 000-24027

| (Translation of registrant's name into English) |

Suite 302

3320 **** - **** 17th **** Avenue **** SW

Calgary, Alberta, Canada, T3E0B4

(Address of principal executive office)

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 ☐

Indicate by check mark whether by furnishing the information contained in this Form, the registrant is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934:

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b):

The Issuer is filing material documents not previously filed.

Exhibit List:

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.

| | (Registrant) | | Date: May 29, 2025 | /s/ Eugene Woychyshyn |

| | Eugene Woychyshyn |

| | Vice President of Finance & CFO |

nxt_ex991.htm EXHIBIT 99.1

NXT Announces Convertible Debenture Conversion

CALGARY, AB, May 29, 2025 – NXT Energy Solutions Inc. (“NXT” or the “Company”) (TSX: SFD; OTCQB: NSFDF) is pleased to announce that Ataraxia Capital (“Ataraxia”), has converted all its debentures, totaling US$2,300,000, into 13,540,208 common shares of the Corporation.   Ataraxia now owns approximately 14.6% of the issued and outstanding common shares of NXT.

Bruce G. Wilcox, CEO of NXT said, “We are very pleased that our strategic alliance partner Ataraxia, is now a significant shareholder.  I especially express my gratitude to Dr. Daere Akobo, CEO of Ataraxia, for his leadership and support during this period of change for NXT.”

About NXT Energy Solutions Inc.

NXT Energy Solutions Inc. is a Calgary-based technology company whose proprietary SFD® survey system utilizes quantum-scale sensors to detect gravity field perturbations in an airborne survey method which can be used both onshore and offshore to remotely identify traps and reservoirs with hydrocarbon and geothermal exploration potential. The SFD® survey system enables our clients to focus their exploration decisions concerning land commitments, data acquisition expenditures and prospect prioritization on areas with the greatest potential. SFD® is environmentally friendly and unaffected by ground security issues or difficult terrain and is the registered trademark of NXT Energy Solutions Inc. NXT Energy Solutions Inc. provides its clients with an effective and reliable method to reduce time, costs, and risks related to exploration.

Contact Information

For investor and media inquiries please contact for NXT Energy Solutions Inc.: