Company: DTK
Filing Date: 2025-09-09
Form Type: 424B5
Source: 0001193125-25-198859
Chunk: 66

Company: DTE ENERGY CO
Filing Date: 2025-09-09
Form: 424B5
Chunk 66
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 to defeasance only, at any time during the period ending on the 123rd day after the date 
 of the deposit of funds with the trustee; and                                                                                                                                                                                                      |

| • |     | we have delivered to the trustee an opinion of counsel to the effect that the holders of the debt securities will                                                                                                                                     
 not recognize income, gain or loss for U.S. federal income tax purposes as a result of the defeasance or covenant defeasance and will be subject to U.S. federal income tax on the same amounts, in the same manner and at the same times as          
 would have been the case if the defeasance had not occurred, and the opinion of counsel, in the case of defeasance, must refer to and be based upon a letter ruling of the Internal Revenue Service received by us, a Revenue Ruling published by the 
 Internal Revenue Service or a change in applicable U.S. federal income tax law occurring after the date of the indenture.                                                                                                                             |

The indenture deems a foreign currency to be any currency, currency unit or composite currency including, without limitation, the euro, issued by the government of one or more countries other than the United States or by any recognized confederation or association of governments. The indenture defines government obligations as securities that are not callable or redeemable at the option of the issuer or issuers and are:

| • |     | direct obligations of the United States or the government or governments in the confederation that issued the                                       
 foreign currency in which the debt securities of a particular series are payable, for the payment of which its full faith and credit is pledged; or |

| • |     | obligations of a person or entity controlled or supervised by and acting as an agency or instrumentality of the                                                                                                                                         
 United States or the government or governments that issued the foreign currency in which the debt securities of a particular series are payable, the timely payment of which is unconditionally guaranteed as a full faith and credit obligation by the 
 United States or that other government or governments.                                                                                                                                                                                                  |

24

Government obligations also include a depositary receipt issued by a bank or trust company as custodian with respect to any government obligation described above or a specific payment of interest on or principal of or any other amount with respect to any government obligation held by that custodian for the account of the holder of such depositary receipt, as long as, except as required by law, that custodian is not authorized to make any deduction from the amount payable to the holder of the depositary receipt