 HOUSTON, Sept. 22, 2021 GLOBE NEWSWIRE -- MRC Global Inc. NYSE: MRC will release its third quarter 2021 results on November 8, 2021 after the market closes. In conjunction with the release, the company will host a conference call, which will be webcast, on Tuesday, November 9, 2021 at 10:00 a.m. Eastern 9:00 a.m. Central. 