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USG Corporation Investment Planhttps://pcaobus.org/form-ap-filings/9288/9288USG Corporation Investment Plan92886/28/2017 8:52:28 AM20166348445f-e9ef-40c9-8cef-5e75f7de85f4166Plante & Moran, PLLC21984USG Corporation Investment Plan757011USG0016601873Nathan Lewis0016601873True