Gunkul Engineering Public Company Limited had supported and promoted employees to use resources wisely according to 3R concept; Reduce – Reuse – Recycle through “GUNKUL Zero waste” project. For year 2021, GUNKUL had opened for old calendar donations and on January 28, 2022 GUNKUL donated the old calendars to the Foundation for the Blind in Thailand under the Royal patronage of H.M. the Queen to produce braille book for visually impaired.