It covers millions of warrants issued between August 25, 2015 and March 3 this year.
It will mean the price of the warrants will be temporarily reduced to allow holders to acquire 1.6 Anfield shares for 10 cents - or effectively, an exercise price per warrant of 6.25 cents.
In order to qualify for the program, warrants must be exercised before 5pm on August 25, the company said.
Anfield is an energy metals exploration, development and near-term production company.
Last week, it outlined a busy 2017 so far, in which it has closed two financings totalling $6mln to be used to develop its projects.
The company is focused on two near term production assets.
It has the Shootaring Canyon Mill in Garfield County, Utah - its main conventional uranium project.
And in Wyoming, it has the Irigaray ISR (in-situ recovery) processing plant, and 2,667 federal mining claims, 56 Wyoming State leases and 15 private leases acquired from Uranium One in September last year.