# Federal Register #C-553-004

Final determination on countervailable subsidies for crystalline silicon photovoltaic cells and modules from Laos

**Buyer:** International Trade Administration, Department of Commerce
**Posted:** September 16, 2026
**Identifier:** C-553-004

This notice from the U.S. Department of Commerce, International Trade Administration, addresses countervailable subsidies for crystalline silicon photovoltaic cells and modules from Laos.
- Government Buyer:
  - U.S. Department of Commerce, International Trade Administration
  - Enforcement and Compliance office
- OEMs and Vendors:
  - Solarspace Technology Sole CO LTD (Solarspace Laos)
  - Vietnam Sunergy Joint Stock Company
- Products/Services Requested:
  - Crystalline silicon photovoltaic cells and modules (including laminates and panels)
    - No specific part numbers or quantities provided
    - Scope includes products with thickness ≥ 20 micrometers, both partially and fully assembled
    - Excludes thin film photovoltaic products and certain off-grid panels
- Unique/Notable Requirements:
  - Final affirmative determination of countervailable subsidies
  - Assigned subsidy rates: Solarspace Laos (82.03%), Vietnam Sunergy (153.67%)
  - Suspension of liquidation instructions for imports from these producers
  - Determination may impact tariffs and import regulations for these solar cells and modules
  - No procurement or purchase request; this is a trade enforcement action

### Description

The U.S. Department of Commerce has determined that countervailable subsidies are being provided to producers and exporters of crystalline silicon photovoltaic cells, whether or not assembled into modules, from the Lao People's Democratic Republic. The investigation period covers January 1, 2024, through December 31, 2024. This determination may impact trade and tariffs related to these solar cells. The final determination aligns with the companion less-than-fair-value investigation of solar cells from Laos.

[View original listing](https://www.federalregister.gov/documents/2026/09/16/2026-18942/crystalline-silicon-photovoltaic-cells-whether-or-not-assembled-into-modules-from-the-lao-peoples)