WOONGJIN THINKBIG CO., LTD. is a Korea-based company mainly engaged in the publishing business. It mainly operates in three businesses: culture education business, which provides home-school materials, including Korean language learning books, math books, Chinese characters learning books and society and science books mainly for elementary school students; future education business, which provides learning encyclopedias, experiential knowledge picture books, science complete collections, language complete collections, music animations and others, as well as others business, which engages in the after school education business, English private educational institute business, and production and development of publications. On April 12, 2011, the Company merged with its wholly owned subsidiary, engaged in the publishing and education business. On December 12, 2011, the Company acquired a 80% stake in Compass Media. On March 15, 2013, the Company sold its entire shares in Woongjin Passone.