REPORTED · WARN NOTICE✓ VERIFIEDAdded Feb 11, 2026

Searles Valley Minerals Layoff — April 2026

SOURCEOFFICIAL FILINGCalifornia Employment Development Department· filed February 6, 2026View the filing ↗

EMPLOYEES AFFECTED

270

SHARE OF WORKFORCE

~45%

EFFECTIVE DATE

Apr 7, 2026

270 OF 600 EMPLOYEES

What we know

Location: Main Street Trona, CA (San Bernardino County).

A WARN notice for this layoff is recorded on February 6, 2026.

Disclosed through an official WARN filing with the CA state workforce agency.

Summary

Searles Valley Minerals has issued a WARN-style notice that it will idle its Trona and Argus operations, resulting in anticipated permanent employment separations for more than 350 employees. The separations are expected to occur on April 7, 2026, with the idling effective April 8, 2026, and the company is providing approximately a 60-day notice period. Searles said affected employees will continue to receive pay and benefits until separation and that it intends to offer a severance package conditioned on agreement and release of claims. The company will coordinate with Kern County and San Bernardino County workforce development boards to provide support services and referenced eligibility for state assistance programs such as CalFresh.

Searles Valley Minerals disclosed this layoff in an official WARN (Worker Adjustment and Retraining Notification) notice recorded by the CA state workforce agency on February 6, 2026. The notice covers 270 employees in Main Street Trona, CA (San Bernardino County), with the layoff effective April 7, 2026.

That is roughly 45% of the 600 people Searles Valley Minerals employs.

LayoffTalk has tracked 2 layoff events at Searles Valley Minerals since April 2026, including 270 jobs documented in official WARN filings, with 1 additional event known from news reporting.