Primary Hydrogen Corp. engages in the acquisition, exploration, and development of natural hydrogen properties in Canada. It holds 100% interest in the Blakelock property located in Northern Ontario; and the Hopkins Hydrogen property located in northern Ontario. The company's other properties include the Mary's Harbour and Point Rosie properties are located in Southern Newfoundland and Labrador; the Coquihalla, Cogburn, and Crooked Amphibolite properties are located in Southern British Columbia; and the Gaspe Ophiolite property is located in Southern Quebec. The company was formerly known as Millbank Mining Corp. and changed its name to Primary Hydrogen Corp. in November 2024. Primary Hydrogen Corp. was incorporated in 2020 and is based in Calgary, Canada.