Company: BLE
Filing Date: 2025-04-07
Form Type: N-CSRS
Source: 0001193125-25-074469
Chunk: 72

Company: BLACKROCK MUNICIPAL INCOME TRUST II
Filing Date: 2025-04-07
Form: N-CSRS
Chunk 72
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 30a-3(c) underthe Investment Company Act of 1940, as amended (the “1940 Act”)) are effective as of a date within 90 days of the filing date of this report based on the evaluation of these controls and procedures required by Rule 30a-3(b) underthe 1940 Act and Rule 13a-15(b)or 15d-15(b)under the Securities Exchange Act of 1934, as amended. (b) There were no changes in the registrant’s internal control over financial reporting (as defined in Rule 30a-3(d) underthe 1940 Act) that occurred during the period covered by this report that have materially affected, or are reasonably likely to materially affect, the registrant’s internal control over financial reporting.

| Item 17 – | Disclosure of Securities Lending Activities for Closed-End Management Investment Companies – Not Applicable to this semi-annual report |

| Item 18 – | Recovery of Erroneously Awarded Compensation – Not Applicable |

| Item 19 – | Exhibits attached hereto |

(a)(1) Code of Ethics – Not Applicable to this semi-annual report (a)(2) Any policy required by the listing standards adopted pursuant to Rule 10D-1under the Exchange Act (17 CFR 240.10D-1)by the registered national securities exchange or registered national securities association upon which the registrant’s securities are listed – Not Applicable (a)(3) Section 302 Certifications are attached (a)(4) Any written solicitation to purchase securities under Rule 23c-1 –Not Applicable (a)(5) Change in Registrant’s independent public accountant – Not Applicable (b) Section 906 Certifications are attached

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. BlackRock Municipal Income Trust II

| By: |     | /s/ John M. Perlowski                                    |
|     |     | John M. Perlowski                                        |
|     |     | Chief Executive Officer (principal executive officer) of |
|     |     | BlackRock Municipal Income Trust II                      |

Date: March 24, 2025 Pursuant to the requirements of the Securities Exchange Act of 1934