GP Batteries International Limited acquired an additional 19% stake in Hanoi Battery Joint Stock Company (HNX:PHN) from Vietnam National Chemical Group on December 16, 2019. GP Batteries International Limited increased its stake from 30% to 49%. GP Batteries International Limited completed the acquisition of an additional 19% stake in Hanoi Battery Joint Stock Company (HNX:PHN) from Vietnam National Chemical Group on December 16, 2019.