# EDGAR Filing Document

**Accession Number:** 0001744494
**File Stem:** 0001829126-25-006680
**Filing Date:** 2025-8
**Character Count:** 2998
**Document Hash:** 4e9d39af0cb500da547b35da5c8be672
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001829126-25-006680.hdr.sgml**: 20250926

**ACCESSION NUMBER**: 0001829126-25-006680

**CONFORMED SUBMISSION TYPE**: CORRESP

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250825

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ADVENT TECHNOLOGIES HOLDINGS, INC.
- **CENTRAL INDEX KEY:** 0001744494
- **STANDARD INDUSTRIAL CLASSIFICATION:** MISCELLANEOUS ELECTRICAL MACHINERY, EQUIPMENT & SUPPLIES [3690]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 830982969
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** CORRESP

**BUSINESS ADDRESS:**
- **STREET 1:** 500 RUTHERFORD AVENUE
- **STREET 2:** SUITE 102
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02129
- **BUSINESS PHONE:** 857-264-7035

**MAIL ADDRESS:**
- **STREET 1:** 500 RUTHERFORD AVENUE
- **STREET 2:** SUITE 102
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02129

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** AMCI Acquisition Corp.
- **DATE OF NAME CHANGE:** 20180622

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;August 25, 2025

**VIA EDGAR**

U.S. Securities and Exchange Commission

Division of Corporation Finance

100 F Street, N.E.

Washington, D.C. 20549

Attention: Kristin Baldwin (baldwinkr@sec.gov)

Re: Advent Technologies Holdings, Inc.<br> Registration Statement on Form S-1<br> CIK No. 0001744494<br> File No. 333-289686<br> Request for Acceleration

Ladies and Gentlemen:

Reference is made to the Registration Statement on Form S-1 (File No. 333-289686) filed by Advent Technologies Holdings, Inc. (the "<u>Company</u>") with the U.S. Securities and Exchange Commission (the "<u>Commission</u>") on August 18, 2025, as amended (the "<u>Registration Statement</u>").

The Company hereby requests that the Registration Statement be made effective at 9:00 a.m. Eastern Time on Wednesday, August 27, 2025, or as soon as possible thereafter, in accordance with Rule 461 of the General Rules and Regulations promulgated under the U.S. Securities Exchange Act of 1933, as amended.

Please contact Tom Rosedale of Nutter, McClennen & Fish, LLP at (617) 439-2040 or by email at trosedale@nutter.com with any questions you may have concerning this request. Please notify Mr. Rosedale when this request for acceleration has been granted.

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| | |
|:---|:---|
| Sincerely, | Sincerely, |
| **ADVENT TECHNOLOGIES HOLDINGS, INC.** | **ADVENT TECHNOLOGIES HOLDINGS, INC.** |
| By: | /s/ Gary Herman |
| Name: | Gary Herman |
| Its: | Chief Executive Officer |

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