Operating Engineers Local 12 (Mountain Crane LLC)

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Case Number: 21-CB-377263

Date Filed: 12/16/2025

Status: Open

Location: Ocotillo, CA

Region Assigned: Region 21, Los Angeles, California

Docket Activity

Date	Document	Issued/Filed By
12/16/2025	Signed Charge Against Union*	NLRB - GC

The Docket Activity list does not reflect all actions in this case.

* This document may require redactions before it can be viewed. To obtain a copy, please file a request through our FOIA Branch.

Participant	Address	Phone
Charged Party / Respondent Legal Representative Tzec, Hugo International Union of Operating Engineers, Local 12, AFL-CIO	150 Corson Street Pasadena, CA 91103	(626)432-7389

Charging Party Individual

Involved Party Employer Mountain Crane LLC	Salt Lake City, UT 84104

Involved Party Employer Mountain Lane LLC	Ocotillo, CA 92259

Charged Party / Respondent Union Operating Engineers Local 12	Pasadena, CA 91103

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