Official filing · original source linked

Corning Optical Communications WARN notice — Union City, 2020-09-29

Name: Corning Optical Communications LLC DBA TR Manufacturing WARN notice
Creator: California Employment Development Department

Corning Optical Communications LLC DBA TR Manufacturing reported 196 workers affected in Union City. Notice date: Sep 29, 2020; planned effective date: Jan 29, 2021.

Raw employer name: Corning Optical Communications LLC DBA TR Manufacturing
Canonical company: Corning Optical Communications →
Workers affected: 196
Event type: layoff
Filing status: filed
Notice / received date: Sep 29, 2020
Effective date: Jan 29, 2021
City: Union City →
County: Alameda →
State: California →
ZIP: Unavailable
Reported location: Union City
Published address: Unavailable
Source classification: Layoff Permanent
Source agency: California Employment Development Department

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Original source & provenance

Open supplied source ↗

Agency source
California Employment Development Department

Source ID / record ID
ca-edd / corning-optical-communications|union-city-alameda-county|2020-09-29|2020-10-05|2021-01-29|196

First ingested
Oct 7, 2026 · 21:47 UTC

Last observed
Oct 7, 2026 · 21:57 UTC

Snapshot SHA-256
fb2ececfed93591a1f349148ce9c3ea92bf4dc110b65965c1fba8c7f6e66fd6d

View original source row

{
  "cells": {
    "notice_date": "09/29/2020",
    "received_date": "10/05/2020",
    "effective_date": "01/29/2021",
    "company": "Corning Optical Communications LLC DBA TR Manufacturing",
    "reported_location": "Alameda County",
    "workers": "196",
    "type": "Layoff Permanent",
    "address": ""
  },
  "noticeDateField": "Notice Date",
  "archive": "https://edd.ca.gov/siteassets/files/jobs_and_training/warn/warn-report-for-7-1-2020-to-06-30-2021.pdf",
  "page": 62
}

A source-linked public record. Secondary records are attributed to their provider and are not independently verified. For direct records, “Verified” means sourced from an official agency; it does not confirm the layoffs took place.

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Company / location	Workers	Effective date	Notice date	Type / source
Corning Optical CommunicationsSanta Clara, CA	80	Feb 20, 2025	Feb 20, 2025	closureSource ↗

Dates and counts are the supplied source’s reported values. Secondary-provider locations are unstructured; they are not confirmed worksite addresses. Check the original document for phased dates, updates and exceptions.

Corning Optical Communications WARN notice — Union City, 2020-09-29

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