Meteoric Resources (ASX:MEI) has executed an amendment agreement with joint venture partner Togni to consolidate its interests in key tenements at the Caldeira Rare Earths Project in Brazil, via immediate and full assignment of the primary tenements required for the commencement of production, according to a Wednesday Australian bourse filing.

The company said as consideration for the transfer, Togni has been granted the right to nominate a director to the Meteoric board, together with a conditional offtake option for up to 30% of mixed rare earth carbonate (MREC) produced at the Caldeira project, with Togni retaining rights to all non-rare earth elements on its tenements.

The offtake option allows Togni to acquire up to 30% of annual production from the project by providing five years' advance notice, on a market pricing and take-or-pay basis, provided the use of MREC does not compete with Meteoric's interests, it added.

The company's shares fell 7% in recent Wednesday trade.