Facility	City	Industry	Status	Distance
Signet Armorlite INC	San Marcos	All Other Plastics Product Manufacturing 326199	UNVERIFIED	0.8 KM
Sumitomo Electric Interconnect Products, INC.	San Marcos	Custom Compounding of Purchased Resins 325991	ACTIVE	0.8 KM
B & H Tool CO	San Marcos	Special Die and Tool, Die Set, Jig, and Fixture Manufacturing 333514	UNVERIFIED	1.0 KM
Outsource Electronics Manufacturing, INC.	San Marcos	Printed Circuit Assembly (Electronic Assembly) Manufacturing 334418	LIKELY ACTIVE	2.3 KM
Protec Arisawa America INC	Vista	All Other Plastics Product Manufacturing 326199	UNVERIFIED	2.9 KM

Every listed plant in San Diego County

Also at this address

1 other record shares this street address. Separate filings can describe distinct businesses on one site, or the same plant recorded by different agencies, so every record is kept rather than merged away.

Oncore Manufacturing Services

San Marcos, CA

UNVERIFIED334412

WHERE THIS RECORD COMES FROM — 1 FEDERAL SOURCE, 6 FIELDS

Every fact on this page traces to a public federal filing. The table below names which register holds this facility, whether that register proves the plant operates or only that it exists, and when each of them last saw it.

EPA cross-references this facility in RCRAINFO · EPA site type STATIONARY.

Source	Evidence	First seen	Last seen
EPA FRS	EXISTENCE	NOV 2025	NOV 2025

FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT

FIELD	SOURCE	SIGNAL
ADDRESS LINE1	EPA FRS	JUL 2026
CITY	EPA FRS	JUL 2026
GEOM	EPA FRS	JUL 2026
NAME	EPA FRS	JUL 2026
RCRA GENERATOR STATUS	EPA ECHO	SEP 2026
STATE	EPA FRS	JUL 2026

Status is computed from independent sources; nothing here is self-reported unless marked Claimed.

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