Mark Kum is search director at GroupM Korea. He formerly worked at EC21, a leading digital agency for the B2B sector in Korea. Before that, in iProspect Korea with an in-depth understanding of SEO/SEM and was involved with top Korean brands such as Samsung Printer, Samsung Camera, Samsung mobile, Hyundai Motor Company, and Samsung Tesco. Kum always returns great results with re-contract and retaining clients. Unlike other online marketers, his career is based on manufacturing that provided him a deep understanding in B2B marketing. Kum also gives profound insights to clients because he is not only a search marketer but his background includes global marketing and economics.