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OPCMIA Missouri State Conference

State Body OPCM

State Conference ยท Operative Plasterers' and Cement Masons'

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Contact

Mailing Address
Attn: Mark Winkler, President 4656 Baumgartner RoadSt. Louis, MO 63129

Officers 3

  • Mark Winkler

    President

  • Curtis Harm

    Secretary

  • Roxanna Scantlin

    Clerical

From the 2026 LM-3 report (opens in new tab)

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Federal Filing

Members Reported
30
Last Report
2026
Form
LM-3
File Number
66764

Members as the union reported them on its 2026 LM-3 report. Counts may include retirees and associate members.

NLRB cases for Operative Plasterers' and Cement Masons' (OPCMIA) Elections and unfair labor practice charges across the whole union, on LaborLab Search

Sources 2

Listings come from public filings with the U.S. Department of Labor and from the organizations' own websites, as of the dates under Sources. Details change, and we may have them wrong. Check with the organization before you rely on them. Use Suggest an Edit above to tell us what's out of date.