The world's most prestigious brands in intimate apparel have come to rely on an Indonesian family-run group of companies that has successfully interlaced advantages of its vertically integrated operations and strong technical competency. The group - comprising fabric specialist WinnerSumbiri Knitting Factory (WSK) and garment units Sumber Bintang Rejeki and Mingala Garment - has fortified its leading position with superior workmanship combined with state-of-the-art machineries.