Perth-based mineral explorer Grange Resources Ltd's share price has risen over 7 per cent following the launch of an international tender process for joint venture partners for its US$1.2 billion (A$1.7 billion) iron ore pellet project.

Perth-based mineral explorer Grange Resources Ltd's share price has risen over 7 per cent following the launch of an international tender process for joint venture partners for its US$1.2 billion (A$1.7 billion) iron ore pellet project.