Mr. Harjo Sutanto (Om Tan) moved from Tulungagung to Surabaya and the late Mr. Johanes F. Katuari (Om Oen) moved from Yogyakarta to Surabaya to establish a household soap factory they named Fa. Thong Fat, which means “success & prosper together.” Fa. Thong Fat’s first product was a bar soap called Wings Soap, which was produced in the factory on Jl. Kalisosok Kidul no. 2 Surabaya by 6 employees. Distributed using bicycles, soap sales were carried out with a door to door system, consignments at the corner stores and shops in the bazaar, and through ladies with baskets on their head called wandering sellers.