US: US gypsum wallboard sales grew by 1% year-on-year to 628Mm2 during the first quarter of 2024. The country imported 20.1Mm2 of gypsum wallboard, down by 13% year-on-year. Mexico supplied 19.3Mm2 (96%) and Canada 800,000m2 (4%) of imports. Meanwhile, the US exported 19.1Mm2 of gypsum wallboard during the quarter, 18Mm2 (94%) of it to Canada.