Exhibit 99.1 TMC Announces First Quarter 2024 Results NEW YORK, May 13, 2024 — TMC the metals company Inc. (Nasdaq: TMC) ("TMC" or "the Company"), an explorer of lower- impact battery metals from seafloor polymetallic nodules, today provided a corporate update and first quarter financial results for the period ending March 31, 2024. Q1 2024 Financial Highlights Gerard Barron, Chairman & CEO of The Metals Company commented: "2024 is the year when most of the speculations about the environmental impacts of ou ...