Internet Party founder Kim Dotcom will address the Mana Party annual conference in Rotorua next weekend ahead of Mana's decision about whether to form an alliance with the Internet Party.
Mana leader Hone Harawira and Mr Dotcom met for the second time in Auckland over the weekend to discuss the potential relationship.
The Mana executive invited Mr Dotcom to speak and he accepted "to talk to and understand the view of Mana members," a Mana statement says.
The speech will be late Saturday morning in the open session of the conference, which news media can attend.
Later in the afternoon the party will discuss relationships with other parties.