# 2024-31449: Oops: Government Admits 'Significant Error' in Solar Panel Investigation

2024-31449, Crystalline Silicon Photovoltaic Cells, Whether or Not Assembled Into Modules, From the Socialist Republic of Vietnam: Amended Preliminary Determination of Less-Than-Fair-Value Investigation, is a Federal Register notice from an unnamed agency published 2025-01-02, effective 2025-01-02 (as of 2026-06-08).

- Canonical: https://policyrisk.com/federal-register/2024-31449
- As of: 2026-06-08
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2024-31449
- Title: Crystalline Silicon Photovoltaic Cells, Whether or Not Assembled Into Modules, From the Socialist Republic of Vietnam: Amended Preliminary Determination of Less-Than-Fair-Value Investigation
- Type: Notice
- Agencies: unknown
- Citation: unknown
- Published: 2025-01-02
- Effective: 2025-01-02
- Comments close: not stated
- Significant: no
- Touches household money: no
- Regulation identifier numbers: none
- Last updated: 2026-06-08

## In one line

Oops: Government Admits 'Significant Error' in Solar Panel Investigation

## Summary

The U.S. Department of Commerce fixed a big math mistake in its early decision about solar panels from Vietnam. This change affects Vietnamese solar cell makers and could change the extra fees they might pay when selling in the U.S. The updated rules started on January 2, 2025, so companies should watch their wallets and calendars!

## Abstract

The U.S. Department of Commerce (Commerce) is amending its preliminary affirmative determination in the less-than-fair-value (LTFV) investigation of crystalline silicon photovoltaic cells, whether or not assembled into modules (solar cells) from the Socialist Republic of Vietnam (Vietnam) to correct for a significant ministerial error. The period of investigation (POI) is October 1, 2023, through March 31, 2024.

## Effects PRIA read

- Preliminary Finding Corrected for Vietnam Solar Cells: cost, high. The Department of Commerce corrected a significant ministerial error in its preliminary less-than-fair-value investigation of crystalline silicon photovoltaic cells from Vietnam covering the period October 1, 2023 through March 31, 2024. Commerce amended the estimated weighted-average dumping margi…
- Revised Cash Deposit Rates for Listed Exporters: cost, high. Commerce set revised cash deposit rates (adjusted for subsidy offsets) effective January 2, 2025, for specific Vietnamese producers: Jinko Solar (Vietnam) Industries Company Limited — 71.74%; Blue Moon Vina Co. — 59.91%; Boviet Solar Technology Co., Ltd. — 60.02%; Elite SNG (Elite Solar Technology…

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## Sources
- [2024-31449 on federalregister.gov](https://www.federalregister.gov/documents/2025/01/02/2024-31449/crystalline-silicon-photovoltaic-cells-whether-or-not-assembled-into-modules-from-the-socialist)
- [2024-31449 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2025-01-02/pdf/2024-31449.pdf)

## Related
- [Previous: 2024-31448, National Institute of General Medical Sciences; Notice of Closed Meetings](https://policyrisk.com/federal-register/2024-31448)
- [Next: 2024-31450, Certain Glass Wine Bottles From the People's Republic of China: Final Affirmati…](https://policyrisk.com/federal-register/2024-31450)
- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2024-31449 (as of 2026-06-08).