Hanford Mission Integration Solutions

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Case Number: 19-CA-378620

Date Filed: 01/08/2026

Status: Closed

Location: Richland, WA

Region Assigned: Region 19, Seattle, Washington

Docket Activity

Date	Document	Issued/Filed By
09/25/2026	Letter Approving Withdrawal Request*	NLRB - GC
01/08/2026	Signed Charge Against Employer*	Charging Party

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.

8(a)(5) Repudiation/Modification of Contract [Sec 8(d)/Unilateral Changes]
8(a)(5) Refusal to Bargain/Bad Faith Bargaining (incl'g surface bargaining/direct dealing)
8(a)(3) Changes in Terms and Conditions of Employment

Participant	Address	Phone
Charged Party / Respondent Legal Representative Chen, Hong Hanford Mission Integration Solutions	2490 Garlick Blvd PO Box MSIN H1-21 Richland, WA 99354	(509)376-1855

Charged Party / Respondent Legal Representative Marrast-Simpson, Jacqueline Hanford Mission Integration Solutions	PO Box 943, MSIN H1-21 Richland, WA 99354-0650	(509)372-1892

Charged Party / Respondent Employer Hanford Mission Integration Solutions	Richland, WA 99352--0943

Charging Party Union Hanford Guards Union Local 21	Richland, WA 99354

Charged Party / Respondent Additional Service Hanford Mission Integration Solutions	Richland, WA 99354-1786

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