This period saw considerable expansion of Swire's marine business under the Chairmanship of John Samuel Swire's two sons, John - known as "Jack" (1861-1933), who took over following the death of James Henry Scott in 1912, and (George) Warren Swire (1883-1949), who became Chairman in 1927. Further new business ventures included a tug and lighter company on the Heiho River at Tianjin, and the establishment of one of Shanghai's leading paint manufacturers, Orient Paint, in 1933.