The Core Assignment: Model onsemi's U.S. Foreign Trade Zone (FTZ) subzone operations (Hopewell Junction Fab) to track duty deferrals and capture net tariff savings on semiconductor manufacturing.

How Inverted Tariffs Work: Standard customs laws assess duties immediately upon importing raw components (e.g., 3.5%–5% on foreign silicon wafers or substrates). Under FTZ status, parts enter duty-deferred under CBP Form 214.

When transformed inside the U.S. cleanroom into finished integrated circuits, onsemi legally elects the finished product duty rate (0% under Information Technology Agreements) when entering U.S. commerce on Form 7501, completely eliminating the component tax.

Why Track Foreign vs. Domestic: Global trade policy changes rapidly. Under trade enforcement mechanisms and Section 301/232 updates, tariffs on imported Asian/European semiconductors and components can fluctuate significantly.

Make-vs-Buy Scenario Modeling: If foreign component tariffs rise (e.g., 3.5% → 25%), importing assembled chips from overseas becomes cost-prohibitive. Domestic FTZ processing shields profit margins by absorbing component tariff spikes through the 0% finished election.

Scrap Tax Liability: Wasted, damaged, or scraped silicon generated during assembly does not qualify for inverted 0% relief and must be taxed at component rates—making yield tracking critical.

Multi-Agency Audits: Inbound chips are governed by U.S. Customs (CBP) and Partner Government Agencies (PGAs) including the FCC (RF devices), FDA (medical chips), and EPA (chemical inputs).

ICRS Reconciliation (77.83% Match): Customs requires 100% alignment between digital ERP ledgers (SAP/Oracle) and FTZ subzone inventory. Unmapped parts risk severe compliance penalties or revoked FTZ status.

6-Sigma Discrepancy Audits: Tracks 103 active audit discrepancies using 8D problem-solving methodologies to target system integration delays (ICRS sync lags, dock scan delays) and accelerate resolution cycle times.