# Filing Detail

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001171843-21-008091
Filing Date
2021-11-19
Accepted
2021-11-19 08:00:43
Documents
95
Period of Report
2021-08-31

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | FORM 10-K | ntic20210831_10k.htm iXBRL | 10-K | 1744560
2 | EXHIBIT 21.1 | ex_308068.htm | EX-21.1 | 19224
3 | EXHIBIT 23.1 | ex_308069.htm | EX-23.1 | 2420
4 | EXHIBIT 31.1 | ex_308070.htm | EX-31.1 | 9243
5 | EXHIBIT 31.2 | ex_308071.htm | EX-31.2 | 9032
6 | EXHIBIT 32.1 | ex_308072.htm | EX-32.1 | 5059
7 | EXHIBIT 32.2 | ex_308073.htm | EX-32.2 | 4995
| Complete submission text file | 0001171843-21-008091.txt |  | 8170574

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
8 | XBRL TAXONOMY EXTENSION SCHEMA | ntic-20210831.xsd | EX-101.SCH | 76403
9 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE | ntic-20210831_cal.xml | EX-101.CAL | 71905
10 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE | ntic-20210831_def.xml | EX-101.DEF | 493334
11 | XBRL TAXONOMY EXTENSION LABEL LINKBASE | ntic-20210831_lab.xml | EX-101.LAB | 444708
12 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE | ntic-20210831_pre.xml | EX-101.PRE | 537927
13 | EXTRACTED XBRL INSTANCE DOCUMENT | ntic20210831_10k_htm.xml | XML | 1195584

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.: 211426405
SIC: 3470 Coating, Engraving & Allied Services