- Associate Editor, (ASME) Journal of Pressure Vessel Technology , 2021 - present.
- Editorial Borad Member, Materials , 2018 - present.
- Senior Editorial Board Member, Scientific Reports , 2018 - present.
- Editor, Metals and Materials International , 2015 - present.
- Vice-President (elected), The Korean institute of Metals and Materials (KIM), 2024-2025.
- International Advisory Board Member, FFAG8 (8th International Workshop on Flow and Fracture of Advanced Glasses, Tokyo, Japan), 2024.
- Honored with SeAH Haeam Award, The Korean institute of Metals and Materials (KIM), 2023.
- International Advisory Committee Member, IIW7 (7th International Indentation Workshop, Hydrabad, India), 2023.
- Organizing Committee Member, AWMFT / APSTP2023 (14th Asian Workshop on Micro/Nano Forming Technology & 4th Asian Pacific Symposium on Technology of Plasticity, Gangneung, Korea), 2023.
- Symposium Organizer, MS&T22 (Pittsburgh, PA, USA), 2022.
- International Advisory Committee Member, IIW7 (7th International Indentation Workshop, Smolenice, Slovakia), 2022 (canceled).
- Editorial Borad Member,Korean Journal of Metals and Material , 2006 - 2021.
- International Advisory Committee Member, ICAMMC 2021 (Virtual; India), 2021.
- Local Organizing Committee Member, Asia Steel 2021 (Gyeongju, Korea), 2021 (postponed from 2020).
- Conference Chair, the 33rd Conference on Advanced Structural Materials (Busan), 2019.
- Director of General Affairs (Secretary), The Korean Institute of Metals and Materials (KIM), 2019.
- Committee Chair, Mechanical Behavior Committee, The Korean Institute of Metals and Materials (KIM), 2019.
- Symposium Organizer, PRICM 10 (Xi'an, China), 2019.
- Visiting scholar, Korea Institute of Science and Technology (KIST), 2018 (Sep.)-2019 (Feb.).
- Local Organizing Committee Member, ICAS 2018 (International Conference on Advanced Steel 2018, Jeju, Korea), 2018.
- Organizing Committee Member, ISMEF 2018 (9th International Symposium on Materials in External, Fields, Seoul, Korea), 2018.
- International Advisory Committee Member, IIW6 (6th International Indentation Workshop, Sapporo, Japan), 2018.
- Local Advisory Committeee Member, BNG XII (12th International Conference on Bulk Metallic Glasses, Seoul, Korea), 2018.
- Academic Director, The Korean Institute of Metals and Materials (KIM), 2017-2018.
- Honored with Yoon Dong-Seok Award, The Korean Institute of Metals and Materials (KIM), 2017.
- Organizing Committee Member, AWMFT2017 (10th Asian Workshop on Micro/Nano Forming Technology, Pohang, Korea), 2017.
- Finance Director (Treasurer), The Korean Institute of Metals and Materials (KIM), 2014-2016.
- Symposium Organizer, PRICM9 (Kyoto, Japan), 2016.
- International Advisory Board Member, IIW5 (5th International Indentation Workshop, Dallas, TX, USA), 2015.
- Program Chair (of structural materials program), IUMRS-ICAM2015 (Jeju, Korea), 2015.
- Local Organizing Committee Member, 7th Korea-China Joint Symposium on Advanced Steel Technology (Jeju, Korea), 2015.
- Assistant to Finance Director, The Korean Institute of Metals and Materials (KIM), 2012-2013.
- Editorial Borad Member, ISRN Mechanical Engineering, 2010-2013.
- Editorial Borad Member, Korean Journal of Materials Research, 2009-2010.
- Organizing Committee Member, NanoKorea2008 (Seoul, Korea), 2008.
- Organizing Committee Member, NanoKorea2007 (Seoul, Korea), 2007.
- Secretarial Team Chairman, NanoKorea2006 (Seoul, Korea), 2006.
- Session Organizer, OMAE2003 (Cancun, Mexico), 2003.
- Session Organizer, OMAE2002 (Oslo, Norway), 2002.
- Session Organizer, OMAE2001 (20th International ASME Conference on Offshore Mechanics & Arctic    Engineering, Rio de Janeiro, Brazil), 2001.
- Reviewer for Acta Materialia, Acta Metallurgica Sinica (English Letters), ACS Applied Engineering Materials,
     Additive Manufacturing, Advanced Engineering Materials, Advanced Materials Interfaces,
     Advances in Condensed Matter Physics, Advances in Materials Science and Engineering,
     AIMS Materials Science, Angewandte Chemie, Applied Physics Letters, Applied Surface Science,
     BioMed Research International, Chemical Engineering Research and Design, Chineses Optics Letters,
     Composites Part B, Computational Materials Science, Corrosion Science, Crystal Growth & Design, Crystals,
     Current Applied Physics, Current Opinion in Solid State & Materials Science, Electrochimica Acta,
     Engineering Failure Analysis, Engneering Fracture Mechanics, Entropy, Experimental Mechanics,
     Extreme Mechanics Letters, Inorganic Chemistry, Intermetallics, International Journal of Fatigue,
     International Journal of Hydrogen Energy,
     International Journal of Machining and Machinability of Materials,
     International Journal of Mechanical Sciences, International Journal of Plasticity,
     International Journal of Solids and Structures, Journal of Alloys and Compounds,
     Journal of Applied Physics, Journal of Composites, Journal of Electronic Materials,
     Journal of Engineering Research, Journal of Materials,
     Journal of Materials Engineering and Performance, Journal of Materials Processing Technology,
     Journal of Materials Research, Journal of Materials Research and Technology,
     Journal of Materials Science and Technology, Journal of Mechanical Science and Technology,
     Journal of Nanoelectronics and Optoelectronics, Journal of Nanoscience and Nanotechnology,
     Journal of Non-Crystalline Solids, Journal of Nuclear Materials, Journal of Physics D: Applied Physics,
     Journal of the American Ceramic Society,
     Journal of the Japan Society of Powder and Powder Metallurgy,
     Journal of the Mechanics and Physics of Solids,
     Korean Journal of Metals and Materials, Materialia, Materials,
     Materials & Design, Materials Characterization, Materials Chemistry and Physics, Materials Express,
     Materials Letters, Materials Research Express, Materials Research Letters,
     Materials Science and Engineering A, Materials Science and Engineering C,
     Materials Science in Semiconductor Processing, Materials Science and Technology,
     Measurement Science and Technology, Measurement, Mechanics of Materials,
     Metallurgical & Materials Engineering, Metallurgical and Materials Transactions A,
     Metals, Metals and Materials international, Microelectronics Engineering, Micron,
     Multidiscipline Modeling in Materials and Structures, Nano Express,
     Nanomaterials, Nanoscience and Nanotechnology Letters, Nanotechnology,
     Nature, Nature Communications, Optical Engineering, Philosophical Magazine,
     Philosophical Magazine Letters, Physica B, Physica Status Solidi RRL (Rapid Research Letters), Rare Metals,
     Science and Technology of Advanced Materials, Science and Technology of Nuclear Installations,
     Scientific Reports, Scripta Materialia, Solid State Communications,
     Steel Research International, Surface and Coatings Technology,
     The International Journal of Advanced Manufacturing Technology,
     Thin Solids Films, Vacuum,
- Biographee included in various Marquis Who's Who (WW in Science and Engineering, WW in the    World. WW in Asia, WW in Emerging Leaders...) and in various IBC Who's Who.