---
schema_version: "secwatch.filing_event.v1"
accession: "0001171843-21-008021"
form_type: "8-K"
ticker: "NTIC"
cik: "0000875582"
company_name: "NORTHERN TECHNOLOGIES INTERNATIONAL CORP"
filed_at: "2021-11-17T23:59:59+00:00"
generated_at: "2026-06-28T07:35:34.355623+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# NTIC reports record FY2021 net sales $56.5M (+18.6% YoY); EPS $0.64 vs loss $0.15

## Summary
- Record FY2021 net sales $56.49M, up 18.6%; net income $6.28M vs loss $1.34M; diluted EPS $0.64 vs loss $0.15.
- Q4 net sales $15.51M, up 54.7% YoY; net income $1.65M vs loss $1.77M.
- ZERUST net sales +32.1% to $45.55M; Natur-Tec net sales -16.9% to $10.94M.
- Joint venture operating income +51.2% to $13.43M; JV net sales +39% to $120.96M.
- Balance sheet strong with no debt, cash $7.68M; $6.2M invested in new China facility.

## SEC filing metadata
- accession: 0001171843-21-008021
- form_type: 8-K
- ticker: NTIC
- cik: 0000875582
- company_name: NORTHERN TECHNOLOGIES INTERNATIONAL CORP
- filed_at: 2021-11-17T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/875582/000117184321008021/0001171843-21-008021-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/875582/000117184321008021/f8k_111621.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001171843-21-008021
- JSON: https://secwatch.observer/filing/0001171843-21-008021.json
- Plain text: https://secwatch.observer/filing/0001171843-21-008021.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.