Sung Siew Secondary School is a part of the
Basel Christian Church of Malaysia. The development of Basel Church schools was inspired by foreign settlers to provide education to their children. Sung Siew has its origin in the year 1907, it was founded by the late Rev. Yap Hyen Moo, who was commissioned by the Basel Mission's Church at West Point in
Hong Kong who was to be stationed in Sandakan as the first catechist school teacher. At first it was purely a Chinese-medium school and was firstly known as the
Basel Mission School of Elopura, Sandakan. In 1910, a German pastor, Rev. Shie came from the Basel Mission in
Basel, Switzerland and started the English section. He became the first principal. Since then, the school became known as ‘Sung Siew’ which means ‘Double Education (English and Chinese Language).’ Among a number of efficient and dedicated teachers at that time was the late Mr. Chung Yuk Fong (who was at one time the President of the Basel Christian Church of Malaysia in Sabah), who was well known for his dedication as a long-serving teacher in that. In 1914, the
First World War broke out and as a consequence, the English section of Sung Siew was compelled to close, but the Chinese section remain unaffected. During the ensuing three years after the first World War which ended in 1918, the school had financial and personnel difficulties and therefore the English section was not reopened until 1923. At the end of 1941, the
Japanese army arrived and occupied
North Borneo and Sung Siew was compelled to close for the second time. It reopened in 1946/1947, firstly with the Chinese section and later the English section. The church and school suffered greatly during
World War II. Leaders were killed and property was extensively destroyed and burnt. The school was faced with total rebuilding problems after the war. The only church property that was not destroyed during the World War II was an old rectory built by the Basel mission. This old building was later renovated for occupation by an American Lutheran
missionary. In 1949 a double-storey wooden building costing about RM 16,000.00 was built with the aid of an outright donation of US$2,000.00 from the then Director of the Lutheran World Federation in Hong Kong, the late pastor Arthur S. Olson, and a single generous donation of RM2,000.00 from a member of the church, the late Mr. Wong Tet Siew. ==Current and former principals==