Quick Answer
CN ENERGY GROUP. INC. reported R&D Expense of $1.3 thousand for fiscal year 2025.
CN ENERGY GROUP. INC. R&D Expense — Annual History
| Fiscal Year | R&D Expense | YoY Change |
|---|---|---|
| 2025 | $1.3K | -99.1% |
| 2024 | $135.1K | -86.3% |
| 2023 | $988.6K | -4.2% |
| 2022 | $1.03M | +167.8% |
| 2021 | $385.5K | +34.2% |
| 2020 | $287.3K | -51.6% |
| 2019 | $594.0K | — |
- CN ENERGY GROUP. INC. showed a decrease of -99.1% in R&D Expense compared to the prior fiscal year.
- Over the 2019–2025 period, CN ENERGY GROUP. INC.’s r&d expense has declined by 99.8% (from $594.0 thousand to $1.3 thousand).
- The most recent figure is from CN ENERGY GROUP. INC.’s fiscal year 2025 report (Form 20-F), filed with the SEC on January 30, 2026.
- All figures are sourced from SEC EDGAR XBRL filings, last verified June 17, 2026.
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