• -Prof. of Chemistry, Hanyang Univ. (17yrs)

• -Development of Silica extraction technology from rice husk for the first time in Korea

• -Transferring Japanese and Vietnamese silica extraction technologies

• -Technical Advisory for Chinese and Indian Silica Manufacturers

• SK Innovation(Energy and Industrial Power Division) (26yrs)

• Haseung CS ENG CEO

  • F/S, Consulting, Business model development​

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• Doosan enerbility (24yrs)

  • Sales and strategic business​

  • Project Administration

  • Procurement

• Approtium

  • Macquarie's Clean Energy Business Strategy Development and Execution​