• 2012
• Development of the mercury lamp lens inspection device for overseas and local markets.
  

• 2010.1
• New CEO took office (manager Lee, Jae Jun with more than 20 years of work was promoted).
  

• 2002.08
• Moved to Guro Digital Complex (business expansion)
  

• 1990~
• Exporting and local selling of Binocular testers. Exporting of lens processing machines (CG machines, polishing machines and centering machines, etc.) Importing and selling of polishing powder of MITSUI MINING&SMELTING CO.,LTD of Japan.
  

• 1990.01
• Started exporting products overseas.
  

• 1989.1
• Sales agency for Alpha Diamond Co., Ltd. of Japan. Started selling dia pellets and related goods.
  

• 1986.05
• Youngshin Trading Co. was founded (alliance with Korea Asahi Optics, manufacture and supply of molds for eyeglasses
  

• 1985
• Sole distributorship for Hinomoto Kenmazai., Ltd. Started selling optical goods in Korea
  

• 1984.01
• YOUNG INTERNATIONAL was founded. Founder: Kim, Young Hwan (currently Chairman)