As per the plan, Powertech will merge with Azarga Resources and the combined company will be named as Azarga Uranium.
Powertech Uranium CEO Richard Clement said: "We are pleased that the vast majority of shareholders agree."
"Azarga Uranium will be a larger and more diversified organization which we believe will be a strong benchmark proposition for investment in the uranium sector."
The transaction is subject to various approvals, including consent from the Toronto Stock Exchange, and is expected to be completed on or about 31 July 2014.
Powertech Uranium is a mineral exploration and development firm that holds stake in Dewey-Burdock Uranium deposit in South Dakota, the Centennial Project in Colorado, and Dewey Terrace and Aladdin Projects in Wyoming.
