On March 17, 2021, Chairman of the Board of Directors of Gunkul Engineering Public Company Limited, Mr. Gunkul Dhumrongpiyawut, President, Ms. Sopacha Dhumrongpiyawut, Chief Executive Officer, Somboon Aueatchasai, Ph.D. and the executive management presented a donation of Patient-Controlled Analgesia (PCA) pump for pain treatment that gives patients the power to control their pain to King Chulalongkorn Memorial Hospital.