# Filing Detail

Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0001437749-26-025711
Filing Date
2026-08-04
Accepted
2026-08-04 17:03:31
Documents
75
Period of Report
2026-06-30

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | FORM 10-Q | ftek20260630_10q.htm iXBRL | 10-Q | 1106784
2 | EXHIBIT 31.1 | ex_971459.htm | EX-31.1 | 9608
3 | EXHIBIT 31.2 | ex_971460.htm | EX-31.2 | 9694
4 | EXHIBIT 32 | ex_971461.htm | EX-32 | 8831
| Complete submission text file | 0001437749-26-025711.txt |  | 6327947

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
5 | XBRL TAXONOMY EXTENSION SCHEMA | ftek-20260630.xsd | EX-101.SCH | 55642
6 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE | ftek-20260630_cal.xml | EX-101.CAL | 42738
7 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE | ftek-20260630_def.xml | EX-101.DEF | 357469
8 | XBRL TAXONOMY EXTENSION LABEL LINKBASE | ftek-20260630_lab.xml | EX-101.LAB | 308016
9 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE | ftek-20260630_pre.xml | EX-101.PRE | 396524
79 | EXTRACTED XBRL INSTANCE DOCUMENT | ftek20260630_10q_htm.xml | XML | 1128496

Mailing Address 27601 BELLA VISTA PARKWAY WARRENVILLE IL 60555
Business Address 27601 BELLA VISTA PARKWAY WARRENVILLE IL 60555 6308454431
FUEL TECH, INC. (Filer) CIK: 0000846913 (see all company filings)

EIN.: 205657551 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 001-33059 | Film No.: 261239951
SIC: 3564 Industrial & Commercial Fans & Blowers & Air Purifing Equip
(CF Office: 06 Technology)