SEC Info - Advent Technologies Holdings, Inc. - ‘8-K’ for 2/4/21

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Advent Technologies Holdings, Inc. – ‘8-K’ for 2/4/21 – ‘EX-16.1’

On: Tuesday, 2/9/21, at 5:08pm ET · For: 2/4/21 · Accession #: 1140361-21-3946 · File #: 1-38742

Previous ‘8-K’: ‘8-K’ on / for 2/4/21 · Next: ‘8-K/A’ on 2/9/21 for 2/4/21 · Latest: ‘8-K’ on 4/23/24 for 4/17/24 · 28 References:

  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

 2/09/21  Advent Techs Holdings, Inc.       8-K:2,3,4,5 2/04/21   27:2.1M                                   Edgarfilings Ltd.

Current Report — Form 8-K
Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 8-K         Current Report                                      HTML    103K 
 2: EX-3.1      Articles of Incorporation/Organization or Bylaws    HTML     31K 
 3: EX-3.2      Articles of Incorporation/Organization or Bylaws    HTML     87K 
 9: EX-10.10    Material Contract                                   HTML     63K 
10: EX-10.11    Material Contract                                   HTML     66K 
11: EX-10.12    Material Contract                                   HTML     79K 
12: EX-10.13    Material Contract                                   HTML     73K 
13: EX-10.14    Material Contract                                   HTML     17K 
14: EX-10.15    Material Contract                                   HTML    311K 
 4: EX-10.5     Material Contract                                   HTML     21K 
 5: EX-10.6     Material Contract                                   HTML     20K 
 6: EX-10.7     Material Contract                                   HTML     67K 
 7: EX-10.8     Material Contract                                   HTML     62K 
 8: EX-10.9     Material Contract                                   HTML     74K 
16: EX-21.1     Subsidiaries List                                   HTML     10K 
17: EX-99.1     Miscellaneous Exhibit                               HTML    181K 
15: EX-16.1     Letter re: a Change in Accountant                   HTML      9K 
23: R1          Document and Entity Information                     HTML     57K 
25: XML         IDEA XML File -- Filing Summary                      XML     19K 
22: XML         XBRL Instance -- nc10019856x1_8k_htm                 XML     23K 
24: EXCEL       IDEA Workbook of Financial Reports                  XLSX      6K 
19: EX-101.DEF  XBRL Definitions -- adn-20210204_def                 XML     56K 
20: EX-101.LAB  XBRL Labels -- adn-20210204_lab                      XML     82K 
21: EX-101.PRE  XBRL Presentations -- adn-20210204_pre               XML     60K 
18: EX-101.SCH  XBRL Schema -- adn-20210204                          XSD     19K 
26: JSON        XBRL Instance as JSON Data -- MetaLinks               16±    26K 
27: ZIP         XBRL Zipped Folder -- 0001140361-21-003946-xbrl      Zip    261K

‘EX-16.1’ — Letter re: a Change in Accountant

This Exhibit is an HTML Document rendered as filed. [ Alternative Formats ]

Exhibit 16.1

February 9, 2021

Office of the Chief Accountant

Securities and Exchange Commission

100 F Street, NE

Washington, D.C. 20549 Ladies and Gentlemen:

We have read Advent Technologies Holdings, Inc.’s statements (formally known as AMCI Acquisition Corp) included under Item 4.01 of its Form 8-K dated February 9, 2021. We agree with the statements concerning our Firm under Item 4.01. We are not in a position to agree or disagree with other statements contained therein.

Very truly yours,

/s/ Marcum LLP

Marcum LLP

New York, NY

Dates Referenced Herein and Documents Incorporated by Reference

This ‘8-K’ Filing	Date	Other Filings

Filed on:	2/9/21	8-K/A
For Period end:	2/4/21	3, 4, 8-K, 8-K/A
		List all Filings

24 Subsequent Filings that Reference this Filing

  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

12/27/23  Advent Techs Holdings, Inc.       424B5                  1:434K                                   Empire Filings/FA
 6/02/23  Advent Techs Holdings, Inc.       424B5                  1:473K                                   Empire Filings/FA
 5/02/23  Advent Techs Holdings, Inc.       424B5                  1:242K                                   Empire Filings/FA
 4/21/23  Advent Techs Holdings, Inc.       S-3                    6:1.7M                                   Empire Filings/FA
 3/31/23  Advent Techs Holdings, Inc.       10-K       12/31/22  138:13M                                    Empire Filings/FA
 1/05/23  Advent Techs Holdings, Inc.       424B3                  1:415K                                   Empire Filings/FA
 1/05/23  Advent Techs Holdings, Inc.       424B3                  1:415K                                   Empire Filings/FA
12/21/22  Advent Techs Holdings, Inc.       POS AM                 4:516K                                   Empire Filings/FA
 4/21/22  Advent Techs Holdings, Inc.       S-1                  127:18M                                    Broadridge Fin’l So… Inc
 4/15/22  Advent Techs Holdings, Inc.       POS AM               125:16M                                    Broadridge Fin’l So… Inc
 3/31/22  Advent Techs Holdings, Inc.       10-K       12/31/21  128:13M                                    Broadridge Fin’l So… Inc
 8/12/21  Advent Techs Holdings, Inc.       424B3                  1:1.3M                                   Broadridge Fin’l So… Inc
 8/12/21  Advent Techs Holdings, Inc.       10-Q        6/30/21   73:6.4M                                   Broadridge Fin’l So… Inc
 6/10/21  Advent Techs Holdings, Inc.       S-8         6/10/21    4:91K                                    Broadridge Fin’l So… Inc
 5/20/21  Advent Techs Holdings, Inc.       10-K/A     12/31/20   54:5.8M                                   Broadridge Fin’l… Inc/FA
 5/20/21  Advent Techs Holdings, Inc.       424B3                  1:648K                                   Broadridge Fin’l So… Inc
 5/20/21  Advent Techs Holdings, Inc.       10-Q        3/31/21   65:3.2M                                   Broadridge Fin’l So… Inc
 5/20/21  Advent Techs Holdings, Inc.       424B3                  1:388K                                   Broadridge Fin’l So… Inc
 5/20/21  Advent Techs Holdings, Inc.       424B3                  1:1.1M                                   Broadridge Fin’l So… Inc
 5/20/21  Advent Techs Holdings, Inc.       8-K/A:9     2/04/21   12:624K                                   Broadridge Fin’l So… Inc
 3/26/21  Advent Techs Holdings, Inc.       S-1/A                 47:6.3M                                   Broadridge Fin’l So… Inc
 3/26/21  Advent Techs Holdings, Inc.       10-K       12/31/20   50:3.5M                                   Broadridge Fin’l So… Inc
 2/16/21  Advent Techs Holdings, Inc.       S-1                   78:10M                                    Broadridge Fin’l So… Inc
 2/09/21  Advent Techs Holdings, Inc.       8-K/A:1,9   2/04/21   11:198K                                   Broadridge Fin’l So… Inc

4 Previous Filings that this Filing References

  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

 1/14/21  Advent Techs Holdings, Inc.       S-4/A                 79:12M                                    Broadridge Fin’l So… Inc
11/20/18  Advent Techs Holdings, Inc.       8-K:1,3,5,811/15/18   11:895K                                   Broadridge Fin’l So… Inc
11/09/18  Advent Techs Holdings, Inc.       S-1/A                 22:3.5M                                   Broadridge Fin’l So… Inc
10/25/18  Advent Techs Holdings, Inc.       S-1                    6:2.5M                                   Broadridge Fin’l So… Inc

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Filing Submission 0001140361-21-003946 – Alternative Formats (Word / Rich Text, HTML, Plain Text, et al.)