UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

________________________________________

FORM 8-K

CURRENT REPORT PURSUANT TO

SECTION 13 OR 15(d) OF

THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): ~~January~~March 2820, 2026

TRI-STATE GENERATION AND

TRANSMISSION ASSOCIATION, INC.

(Exact name of Registrant as specified in its charter)

Colorado

333-212006

84-0464189

(State or other jurisdiction

of incorporation)

(Commission File Number)

(I.R.S. Employer

Identification No.)

1100 W. 116th Avenue

Westminster

Colorado

80234

(Address of principal executive offices)

(Zip Code)

Registrant’s telephone number, including area code (303) 452-6111

None

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:


☐			Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐			Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐			Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐			Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:


Title of each class	Trading Symbol(s)	Name of each exchange on which registered
None	None	None

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ◻

Item 57.~~02Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain~~01 Regulation ~~Officers; Compensatory Arrangements of Certain Officers~~FD Disclosure.

~~On January 28, 2026,~~ Tri-State Generation and Transmission Association, Inc. (“Tri-State”) ~~certified~~has ~~the~~a ~~election~~contract bytermination ~~its~~payment ~~member,~~methodology ~~Wyrulec~~tariff ~~Company~~on ~~(“Wyrulec”),~~file ofwith ~~Dewey~~the ~~Hageman,~~Federal Energy Regulatory Commission as ~~the~~Rate ~~director~~Schedule ~~representing~~No. 281 ~~Wyrulec~~that onprovides a process should a utility member elect to withdraw from membership in Tri-State’s ~~Board~~and ofterminate ~~Directors~~its wholesale electric service contract. MrCertain elements of Rate Schedule No. ~~Hageman~~281 isremain ~~expected~~subject to ~~serve~~ongoing onproceedings at the ~~External~~United ~~Affairs-Member~~States ~~Relations~~Court ~~Committee~~of Appeals for the Tenth Circuit and the D.C Circuit.

On ~~February~~March 219, 2026, ~~Tri-State~~Jemez ~~certified~~Mountains ~~the~~Electric ~~election~~Cooperative, byInc. ~~its member~~(“Jemez”), ~~Chimney~~which ~~Rock~~is ~~Public~~electrically ~~Power~~served ~~District~~in ~~(“CRPPD”)~~the Western Interconnection, ofprovided ~~Dan~~a ~~Carnine~~non-conditional two-year notice of intent to ~~replace~~withdraw ~~Kevin~~from ~~Stuart~~membership in Tri-State, aswith ~~the~~an ~~director~~April 1, 2028, ~~representing~~withdrawal ~~CRPPD~~effective ondate, pursuant to Rate Schedule No. 281. Tri-State’s ~~Board~~cannot ofpredict ~~Directors~~if Jemez will withdraw its membership and terminate its wholesale electric service contract. MrJemez comprised 2.90 percent ~~Carnine~~and is1.91 percent ~~expected~~of toTri-State’s ~~serve~~utility onmember revenue and operating revenue, respectively, for the ~~External~~year ~~Affairs-Member~~ended ~~Relations~~December 31, ~~Committee~~2025.

On March 20, 2026, Tri-State issued a press statement related to Jemez’s notice of intent to withdraw. A copy of the press statement is attached to this report as Exhibit 99.1.

The information contained in this Item 7.01 and Exhibit 99.1 is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section. In addition, the information contained in this Item 7.01 and Exhibit 99.1 shall not be incorporated by reference into any of Tri-State’s filings with the Securities and Exchange Commission or any other document except as shall be expressly set forth by specific reference in such filing or document.

Forward-Looking Statements

Certain statements included in this Current Report on Form 8-K that are not historical facts are forward-looking statements for purposes of the safe harbor provisions under the United States Private Securities Litigation Reform Act of 1995. Forward-looking statements generally are accompanied by words such as “believe,” “may,” “will,” “estimate,” “continue,” “anticipate,” “intend,” “expect,” “should,” “would,” “plan,” “predict,” “potential,” “seem,” “seek,” “future,” “outlook,” “project,” and similar expressions that predict or indicate future events or trends or that are not statements of historical matters. These forward-looking statements include, but are not limited to, the scope and the amount of Jemez’s contract termination payment and whether Jemez will withdraw. These statements are based on various assumptions, whether or not identified in this Current Report or the exhibit hereto, and on the current expectations of management and are not predictions of actual events.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

99.1 - Press Statement issued on M arch 20 , 202 6

SIGNATURE

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.

	TRI-STATE GENERATION AND TRANSMISSIONASSOCIATION, INC.
Date: February 3, 2026	By:	/s/ Bryan R. Davis
Date: March 20, 2026	By:	/s/ Bryan R. Davis
		Bryan R. Davis
		Senior Vice President/Chief Financial Officer

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