Midwest Electric gives two-year notice to withdraw from Tri-State membership

Tri-State Generation & Transmission Association, Inc.

Midwest provided non-conditional two-year withdrawal notice on May 27, 2026, effective June 1, 2028.
Midwest accounted for 1.9% of Tri-State's utility member revenue and 1.3% of operating revenue in 2025.
Withdrawal governed by FERC tariff Rate Schedule No. 281; contract termination payment to be determined.
Tri-State states it cannot predict if Midwest will ultimately complete the withdrawal.

item 7.01 item 9.01

Machine-readable event card

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accession: 0001637880-26-000030
form_type: 8-K
ticker: null
cik: 0001637880
company_name: Tri-State Generation & Transmission Association, Inc.
filed_at: 2026-05-28T16:21:20+00:00
discovered_at: 2026-05-28T16:22:04.508879+00:00
generated_at: 2026-05-28T16:32:38.850531+00:00
sec_items: ["7.01", "9.01"]
event_type: other_material
sentiment: negative
materiality_score: 0.4
calibrated_materiality_score: 0.4
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