ASP Isotopes vs Tantech Holdings
Tantech Holdings is the larger business, with $38.4m of revenue in fiscal 2025 against $23.8m for ASP Isotopes (1.6 times as much). ASP Isotopes grew faster (475.5% against -10.7%). Tantech Holdings kept more of each dollar of sales as profit: a net margin of -80.9% against -670.2%.
| Latest fiscal year | ASP IsotopesASPI, 2025 | Tantech HoldingsTANH, 2025 |
|---|---|---|
| Revenue | $23.8m | $38.4m |
| Revenue growth | 475.5% | -10.7% |
| Net income | −$160m | −$31.0m |
| Operating margin | — | -31.8% |
| Net margin | -670.2% | -80.9% |
| Return on equity | -126.8% | -25.7% |
| Free cash flow | −$47.4m | −$5.8m |
| Cash | $280m | $33.0m |
| Total debt | $200m | — |
| Debt to equity | — | — |
| Dividend per share | — | — |
| Dividend yield | — | — |
| Share buybacks | — | — |
| Employees | 271 | — |
| Market value | $235m | $31.7m |
| Price vs our value range | — | Below our value range |
| Moat score | — | — |
| Insider trades, 12 months | 2 buys, 30 sales | 0 buys, 0 sales |