DTE Energy to present at AGA Financial Forum May 17-19, 2026, with 2026 earnings guidance discussion

DTE ENERGY CO

DTE Energy meets with investors May 17-19, 2026; slide presentation furnished as Exhibit 99.1.
Presentation reaffirms 2026 operating earnings guidance; no specific numbers disclosed in filing.
Reconciliation to reported earnings not provided due to non-recurring items and mark-to-market adjustments.
Presentation available on DTE Energy website May 15, 2026.
Regulation FD disclosure; information not deemed filed for SEC purposes.

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