As part of an Environment friendly campaign, HPI with Harribon Foundation and other Honda Genpo (HCPI & HPMC) through Honda Foundation Inc. (HFI) united for a tree-planting activity held at Mt. Batolusong Tanay, Rizal last October 27, 2018. Tree- Planting activity aims to preserve the environment for future generations. A total of 150 volunteers from HPI, HCPI, HPMC joined the activity. All the volunteers were able to plant 5,000 seedlings.