The mineral licenses for the uranium deposits are held by European Uranium’s wholly-owned subsidiaries, Ludovika Energy and Ludovika Mining.
The latest agreement follows a share purchase agreement (SPA) on 9 May which was not concluded due to failure of certain conditions.
As per the deal, Forte will have to pay C$25,000 by 20 June, $475,000 by the end of July and sign a definitive agreement.
Additionally, the company should issue C$350,000 each year to European Uranium until ten years.
Forte Energy managing director Mark Reilly said: "Forte looks forward to working closely with European Uranium in a long term relationship to advance these exciting Slovakian uranium assets."
"I believe the terms of the revised agreement provides an improved outcome for the shareholders of both companies," added Reilly.
The transaction is subject to the consent from regulatory authorities.