Not a government sitenlrb.fyi is an independent project. It is not affiliated with, endorsed by, or operated by the National Labor Relations Board or any government agency. The Board's own site is at nlrb.gov.

Cemex

66 cases in this site's copy of the record · 2 of those 66 are marked open by the Board · Region 10, 12, 15, 20, 27, 28, 31, 32 · Antioch, CA; Bullhead City, AZ; Clinchfield, GA; Demopolis, AL; El Dorado Hills, CA; El Dorado, CA and more

Each case links to the Board's own docket page. This site holds what the Board listed, not the documents.

What kinds of case

Type	What it is	Here
CA	Charge against an employer	59
RC	Petition for an election	2
RD	Petition to decertify	2
RM	Petition filed by an employer	1
UC	Petition to clarify a unit	2

The cases

Charge against an employer
CA
Filed 10 February 2026Case 12-CA-380921OpenPonce, PRRegion 12Workers in the unit 14
Charge against an employer
CA
Filed 13 May 2025Case 28-CA-366447ClosedLas Vegas, NVRegion 28Workers in the unit 50
Charge against an employer
CA
Filed 14 August 2024Case 20-CA-348326ClosedWest Sacramento, CARegion 20Workers in the unit 65
Charge against an employer
CA
Filed 26 July 2024Case 20-CA-347158OpenWest Sacramento, CARegion 20Workers in the unit 65
Charge against an employer
CA
Filed 5 February 2024Case 20-CA-335187ClosedLincoln, CARegion 20Workers in the unit 12
CEMEX
CA
Filed 29 January 2024Case 12-CA-334651ClosedSan Juan, PRRegion 12Workers in the unit 15
Charge against an employer
CA
Filed 25 July 2023Case 12-CA-322432ClosedMiami, FLRegion 12Workers in the unit 20
Charge against an employer
CA
Filed 26 June 2023Case 12-CA-320708ClosedMiami, FLRegion 12Workers in the unit 30
Charge against an employer
CA
Filed 22 June 2023Case 12-CA-320434ClosedMiami, FLRegion 12Workers in the unit 30
CEMEX
CA
Filed 2 May 2023Case 12-CA-317183ClosedSan Juan, PRRegion 12Workers in the unit 25
Charge against an employer
CA
Filed 13 March 2023Case 15-CA-313917ClosedDemopolis, ALRegion 15Workers in the unit 8
CEMEX
CA
Filed 19 January 2023Case 12-CA-310521ClosedPonce, PRRegion 12Workers in the unit 50
Charge against an employer
CA
Filed 3 November 2022Case 12-CA-306580ClosedPonce, PRRegion 12Workers in the unit 40
CEMEX
CA
Filed 3 November 2022Case 12-CA-306531ClosedPonce, PRRegion 12Workers in the unit 50
Charge against an employer
CA
Filed 12 April 2021Case 10-CA-275420ClosedClinchfield, GARegion 10Workers in the unit 98
Charge against an employer
CA
Filed 7 April 2021Case 10-CA-275257ClosedPerry, GARegion 10Workers in the unit 50
Charge against an employer
CA
Filed 30 December 2020Case 10-CA-270814ClosedPerry, GARegion 10Workers in the unit 125
Charge against an employer
CA
Filed 22 December 2020Case 10-CA-270562ClosedPerry, GARegion 10Workers in the unit 125
Petition to decertify
RD
Filed 5 October 2020Case 28-RD-267100ClosedGilbert, AZRegion 28Workers in the unit 34
Included: Transport drivers Excluded: office personnel and mechanics
CEMEX
CA
Filed 7 August 2020Case 12-CA-264379ClosedNaples, FLRegion 12Workers in the unit 10
Charge against an employer
CA
Filed 6 May 2020Case 28-CA-260145ClosedPhoenix, AZRegion 28Workers in the unit 150
Charge against an employer
CA
Filed 20 March 2020Case 10-CA-258371ClosedKnoxville, TNRegion 10Workers in the unit 85
CEMEX
CA
Filed 2 August 2019Case 12-CA-246003ClosedWest Palm Beach, FLRegion 12Workers in the unit 2
Charge against an employer
CA
Filed 1 February 2018Case 28-CA-214124ClosedPhoenix, AZRegion 28Workers in the unit 140
Charge against an employer
CA
Filed 23 January 2018Case 28-CA-213477ClosedPhoenix, AZRegion 28Workers in the unit 18
Charge against an employer
CA
Filed 28 June 2017Case 28-CA-201514ClosedPhoenix, AZRegion 28Workers in the unit 20
Charge against an employer
CA
Filed 27 March 2017Case 32-CA-195578ClosedFresno, CARegion 32Workers in the unit 31
Charge against an employer
CA
Filed 6 September 2016Case 12-CA-183663ClosedMiami, FLRegion 12Workers in the unit 1,000
Charge against an employer
CA
Filed 5 September 2016Case 12-CA-183567ClosedMiami, FLRegion 12Workers in the unit 1,000
Charge against an employer
CA
Filed 28 April 2015Case 20-CA-151121ClosedWoodland, CARegion 20Workers in the unit 7
CEMEX
CA
Filed 17 December 2014Case 32-CA-143045ClosedEl Dorado Hills, CARegion 32Workers in the unit 50
CEMEX
CA
Filed 21 March 2014Case 32-CA-124939ClosedEl Dorado, CARegion 32Workers in the unit 6
CEMEX
CA
Filed 28 January 2014Case 32-CA-121474ClosedEl Dorado Hills, CARegion 32Workers in the unit 10
CEMEX
CA
Filed 9 January 2013Case 10-CA-096127ClosedClinchfield, GARegion 10Workers in the unit 200
CEMEX
CA
Filed 21 December 2012Case 10-CA-095395ClosedClinchfield, GARegion 10Workers in the unit 120
CEMEX
CA
Filed 30 April 2012Case 12-CA-079995ClosedOrlando, FLRegion 12Workers in the unit 2
Charge against an employer
CA
Filed 30 January 2012Case 27-CA-073410ClosedLyons, CORegion 27Workers in the unit 80
Charge against an employer
CA
Filed 10 January 2012Case 27-CA-072219ClosedLyons, CORegion 27Workers in the unit 80
Charge against an employer
CA
Filed 16 December 2011Case 27-CA-070908ClosedLyons, CORegion 27Workers in the unit 80
Charge against an employer
CA
Filed 25 August 2011Case 28-CA-063435ClosedYuma, AZRegion 28Workers in the unit 50
Charge against an employer
CA
Filed 5 May 2011Case 27-CA-021893ClosedLyons, CORegion 27Workers in the unit 70
Petition to decertify
RD
Filed 8 December 2010Case 28-RD-001006ClosedBullhead City, AZRegion 28Workers in the unit 5
CEMEX
CA
Filed 5 January 2010Case 28-CA-022848ClosedPhoenix, AZRegion 28Workers in the unit 443
CEMEX
UC
Filed 11 September 2009Case 28-UC-000249ClosedPhoenix, AZRegion 28Workers in the unit 320
Including: All full-time drivers and mechanics employed by the Respondent at its Flagstaff and Phoenix-area facilities in Arizona. Excluding: All other employees, office-clericals, guards, and supervisors as defined in the Act.
CEMEX
UC
Filed 11 September 2009Case 28-UC-000248ClosedPhoenix, AZRegion 28Workers in the unit 120
Including: All drivers and mechanics employed by the Respondent at its Avra Valley, Cortaro, Nogales, and Oracle facilities in Arizona. Excluding: All other employees, office-clericals, guards, and supervisors as defined in the Act.
CEMEX
CA
Filed 24 August 2009Case 28-CA-022653ClosedYuma, AZRegion 28Workers in the unit 200
Charge against an employer
CA
Filed 2 June 2009Case 12-CA-026361ClosedWest Palm Beach, FLRegion 12Workers in the unit 175
Charge against an employer
CA
Filed 8 September 2008Case 32-CA-024097ClosedReno, NVRegion 32Workers in the unit 65
Charge against an employer
CA
Filed 8 September 2008Case 32-CA-024096ClosedReno, NVRegion 32Workers in the unit 65
Charge against an employer
CA
Filed 2 September 2008Case 32-CA-024084ClosedReno, NVRegion 32Workers in the unit 65
Charge against an employer
CA
Filed 21 August 2008Case 28-CA-022091ClosedTucson, AZRegion 28Workers in the unit 75
Charge against an employer
CA
Filed 20 August 2008Case 12-CA-025958ClosedWest Palm Beach, FLRegion 12Workers in the unit 15
CEMEX
CA
Filed 14 July 2008Case 28-CA-022018ClosedLas Vegas, NVRegion 28Workers in the unit 280
Charge against an employer
CA
Filed 17 June 2008Case 28-CA-021979ClosedTucson, AZRegion 28Workers in the unit 75
CEMEX
CA
Filed 22 May 2008Case 28-CA-021935ClosedPhoenix, AZRegion 28Workers in the unit 450
CEMEX
CA
Filed 13 May 2008Case 28-CA-021926ClosedLas Vegas, NVRegion 28Workers in the unit 280
Charge against an employer
CA
Filed 3 March 2008Case 27-CA-020807ClosedLyons, CORegion 27Workers in the unit 77
Charge against an employer
CA
Filed 31 January 2008Case 28-CA-021751ClosedLas Vegas, NVRegion 28Workers in the unit 300
Charge against an employer
CA
Filed 5 September 2007Case 10-CA-036997ClosedClinchfield, GARegion 10Workers in the unit 700
CEMEX
CA
Filed 23 May 2007Case 32-CA-023274ClosedRichmond, CARegion 32Workers in the unit 5
CEMEX
RM
Filed 14 March 2007Case 32-RM-000803ClosedAntioch, CARegion 32Workers in the unit 1
Included: Automotive Machinists Excluded: None
Petition for an election
RC
Filed 25 January 2007Case 20-RC-018119ClosedWoodland, CARegion 20Workers in the unit 19
Included: Drivers and Yard Loader Operators Excluded: Batch Managers, Clerical Employees, Guards and Supervisors as defined by the Act.
Petition for an election
RC
Filed 25 January 2007Case 20-RC-018118ClosedMarysville, CARegion 20Workers in the unit 7
Included: Drivers and Yard Loader Operators Excluded: Batch Managers, Clerical Employees, Guards and Supervisors as defined by the Act.
Charge against an employer
CA
Filed 28 July 2005Case 24-CA-010148ClosedSan Juan, PRRegion 12Workers in the unit 280
Charge against an employer
CA
Filed 12 July 2005Case 24-CA-010136ClosedSan Juan, PRRegion 12Workers in the unit 280
Charge against an employer
CA
Filed 19 May 2004Case 31-CA-026826ClosedOntario, CARegion 31Workers in the unit 210

Last refreshed 19 September 2026. What is in it, and what is not.

The Labor Board FYI is independent, and is not the Board or any government agency. Where a number here disagrees with the Board's, the Board is right: tell us at [email protected]. If a name here is a private person and not a business or a union, write to the same address and it comes off. Where this comes from.