Woo-Seok Koh

Hana Securities Co., Ltd. (Broker) (Hana Securities-Broker) is the securities brokerage division of Hana Securities Co., Ltd., which is owned by Hana Financial Group, Inc. (KRX: 086790) in Korea. The firm was founded in 1977 as Daehan Investment & Securities Co. Ltd. (until 2007), as Hana Daetoo Securities Co., Ltd. (until 2015) and as Hana Financial Investment Co., Ltd. (until 2022). Headquartered in Seoul, Hana Securities-Broker offers trading and execution services to various clients.

SK Ecoplant Co. Ltd. is a holding company, which offers civil engineering and construction services. The company operates in the following business areas: Housing, Architecture, Infrastructure, Chemical Plant, Power Plants and Ubiquitous Business (u-Business). Its services include construction of residential, commercial, cultural buildings, petrochemical and power plants, roads, bridges and information technology infrastructures and plant engineering. The company was founded on February 21, 1962 and is headquartered in Seoul, South Korea.

KTB Network Co., Ltd. (Venture Capital) is a venture capital subsidiary of Daol Investment Co., Ltd. founded in 1981. KTB Network Co., Ltd. (Venture Capital) is headquartered in Seongnam, South Korea with offices in Shanghai, Palo Alto and Singapore.

AJ Capital Partners Co Ltd (AJ Capital Partners) is a venture capital firm headquartered in Seoul, Korea. The firm is established in 2007 by its parent entity, AJ Rent A Car Co Ltd. (KRX: 068400)

Brightstorm, Inc. provides online video lessons for teens, teachers, and parents. Its lessons include math, science, and english subjects. It also provides concept explanations, test-taking strategies, and practice tests, and flashcards. The company was founded by Bumsoo Kim in 2008 and is headquartered in Santa Clara, CA.