The Nationalist Period
From 1929-1937 China was rather peaceful and the financial condition of the Nationalist Government recovered rapidly. The foreignness and privileges of the CMCS was then regulated by the Government but some part of its special status still partially remained. Maze was still T. V. Soong’s or H. H. Kung’s private delegate to western countries or sometimes local warlords. The CMCS was also entrusted more power to regulate local warlords.
However, the most serious threat to the CMCS was Japan. Because of the secession of Manchuria in 1931, the CMCS lost all Customs stations in Manchuria. The outbreak of the Second Sino-Japanese in 1937 isolated the Inspectorate General in the Shanghai settlement. Although Maze managed to put all Customs stations under the CMCS’s domain, the outbreak of the Pacific War made Maze dismissed and captured in 1941. Hence, the CMCS was separated into two parts.
In Maze’s reign, the Chinese staff’s status and salary were significantly improved because the Chinese staff supported Maze for IG-ship. Maze promoted a number of Chinese staff members graduated from the Customs College to the rank of Commissioner, such as Ting Kwei-tang (丁貴堂 1891-1962, Deputy IG 1943-1949). This group of Chinese staff became the leading generation of the Mainland Chinese Customs Service and the Taiwanese Customs Service.