Polysilicon & Solar Components

China proposes export ban on perovskite and tandem solar manufacturing technology

China's Ministry of Commerce and Ministry of Science and Technology proposed on Oct. 16, under Joint Announcement No. 48 of 2026, adding 12 photovoltaic technologies to the Catalogue of Technologies Prohibited or Restricted from Export, covering perovskite-silicon tandem cell processes for wafers of at least 182 mm and efficiencies of 30% or higher, slot-die coating at widths of at least 1.1 meters, single-junction perovskite modules of at least 1 square meter at 18% or higher, and tandem modules of the same area at 28% or higher.

China proposes export ban on perovskite and tandem solar manufacturing technology

China's Ministry of Commerce and Ministry of Science and Technology proposed on Oct. 16, under Joint Announcement No. 48 of 2026, adding 12 photovoltaic technologies to the Catalogue of Technologies Prohibited or Restricted from Export, covering perovskite-silicon tandem cell processes for wafers of at least 182 mm and efficiencies of 30% or higher, slot-die coating at widths of at least 1.1 meters, and single-junction perovskite modules of at least 1 square meter at 18% or higher.

BIS issues temporary final rule on polysilicon stockpiling under Proclamation 11052

BIS issued a temporary final rule, effective September 22, 2026 through December 3, 2026, setting the criteria and process it will use to monitor existing companies for evidence of stockpiling polysilicon and polysilicon derivatives ahead of import adjustments effective December 4, 2026 under Proclamation 11052. The rule limits a newly established importer's ability to stockpile, imposes import limitations on new importers that register with CBP on or after August 6, 2026, and subjects companies found to be stockpiling to an import prohibition if necessary. It also establishes the process for such companies to obtain a waiver from any import prohibitions imposed under the rule.

CBP issues guidance on polysilicon import ban under Proclamation 11052

CBP states in CSMS # 69994928 that, under Commerce's Temporary Final Rule implementing Proclamation 11052 (91 FR 51975), an importer of record that Commerce determines is importing polysilicon products in volumes substantially greater than its historic averages, or that a new importer of record is exceeding applicable weekly quantity limits, is prohibited from making further entries of certain polysilicon products until December 4, 2026. The goods may be moved to a bonded warehouse but may not be entered for consumption before that date. Affected importers may apply to Commerce to waive the prohibition.

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