In 1941, due to the closure of schools in Thonburi and Phra Nakhon provinces during World War II, children of government officials and those employed by the Royal Thai Chemical Department were left without a place to receive education.

It was decided by government officials that the Royal Thai Chemical Department should open a school to educate the children, and a request to do so was made to the Ministry of Education.

[1] The Royal Thai Chemical Department's Head, Col. Praya Witthaya Sarunayut, established the school on May 20, 1944, named Sarawittaya Army Sponsor School.

Lt. Col. Khun Banyatthip Komut was assigned as the school's manager and owner, and Mrs. Samruay Unahalekaka was appointed as a teacher under the department's support, and classes began on June 2, 1944.

[1] Sarawittaya Army Sponsor School was named after Col. Praya Witthaya Sarunayut in commemoration.