In 1939, as the Pacific War loomed, Hsiehchih founded Tatung Steel to ensure its supply of rebar and other building materials. When the ROC government moved to Taiwan after the war, the company changed its name to Tatung Steel Machinery and assisted the government in restoring 577 train cars that had been bombed by American forces.
1939 年太平洋戰爭戰火漸熾，為了確保鋼筋等建材的供應，協志商號成立「株式會社大同鐵工所」；戰後國民政府來台，又改名為「大同制（製）鋼機械廠」，並主動協助新政府修復被美軍炸壞的 577 節火車車廂。