# Filing Detail

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001171843-25-007481
Filing Date
2025-11-20
Accepted
2025-11-20 16:00:58
Documents
100
Period of Report
2025-08-31

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | FORM 10-K | ntic20250831_10k.htm iXBRL | 10-K | 1899270
2 | EXHIBIT 19.1 | ex_886693.htm | EX-19.1 | 139812
3 | EXHIBIT 21.1 | ex_886679.htm | EX-21.1 | 40822
4 | EXHIBIT 23.1 | ex_886680.htm | EX-23.1 | 2171
5 | EXHIBIT 31.1 | ex_886681.htm | EX-31.1 | 13093
6 | EXHIBIT 31.2 | ex_886682.htm | EX-31.2 | 13009
7 | EXHIBIT 32.1 | ex_886683.htm | EX-32.1 | 5348
8 | EXHIBIT 32.2 | ex_886684.htm | EX-32.2 | 5758
| Complete submission text file | 0001171843-25-007481.txt |  | 9881685

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
9 | XBRL TAXONOMY EXTENSION SCHEMA | ntic-20250831.xsd | EX-101.SCH | 83664
10 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE | ntic-20250831_def.xml | EX-101.DEF | 589854
11 | XBRL TAXONOMY EXTENSION LABEL LINKBASE | ntic-20250831_lab.xml | EX-101.LAB | 521837
12 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE | ntic-20250831_pre.xml | EX-101.PRE | 643979
13 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE | ntic-20250831_cal.xml | EX-101.CAL | 75074
103 | EXTRACTED XBRL INSTANCE DOCUMENT | ntic20250831_10k_htm.xml | XML | 1433795

Mailing Address 4201 WOODLAND ROAD PO BOX 69 CIRCLE PINES MN 55014
Business Address 4201 WOODLAND ROAD PO BOX 69 CIRCLE PINES MN 55014 (763) 225-6601
NORTHERN TECHNOLOGIES INTERNATIONAL CORP (Filer) CIK: 0000875582 (see all company filings)

EIN.: 410857886 | State of Incorp.: DE | Fiscal Year End: 0831
Type: 10-K | Act: 34 | File No.: 001-11038 | Film No.: 251502972
SIC: 3470 Coating, Engraving & Allied Services
(CF Office: 04 Manufacturing)