May, 2009 – Established Cheonjibio and appointed CEO March, 2012 – Completed a test on effectiveness of complex apple fertilizer (Honey Bee and Calamine) July, 2015 – Registered factory and the fertilizer manufacturing business July, 2016 – Completed tests on Calamine Care’s bird repellent effect and coloring effect October, 2018 – Relocated and expanded the company (Hwanggan-myeon, Yeongdong-gun, Chungcheongbuk-do) January, 2019 – Registered as a member in Korea Trade Committee September, 2019 – Selected as excellent weather management company November, 2019 – Certified as a company with excellent capabilities