NPK International Inc. (NYSE: NPKI) reported its first quarter results for the period ending March 31, 2026. Compared to the previous year, the company saw a 16% increase in revenues, reaching $75.1 million. Operating income from continuing operations stood at $14.4 million, equivalent to 19.2% of revenues. Income from continuing operations was reported at $10.4 million, translating to $0.12 per diluted share. Adjusted EBITDA from Continuing Operations was also highlighted.