Eight years after the founding of the new factory, Tsai bought some industrial land in Fuhsing Township in Changhua and turned to manufacturing boots, shoe parts, and women's shoes. By that time the company already had over 10,000 employees, and almost all their neighbors in Lukang and all the young people of Fuhsing were working there.
創廠 8 年後，蔡其瑞購買了彰化福興的廠地，並改為製造馬靴及塑膠發泡板等成品鞋、鞋材及女鞋，這是台灣鞋業的第一座現代化工廠，也是最大的女鞋代工廠，當時員工就有上萬人，鹿港鄉親和福興子弟大多在這裡服務。