• 2023 Symposium in Algebraic Geometry, January 04, 2024, Spectrum of Non-degenerate Functions with Simplicial Newton Polytopes

• 2023 KMS Special Conference with 2022 Fields Medalists, October 27,2023 Topological Euler characteristic formula for certain singular projective varieties

• 2023 International workshop for Future Value of Mathematics and its Applications, August 08, 2023, Ideals and Spectrum

• Lecture series at Seoul National University, July 17, 2023, Part1: How to Research the Singularity?, Part2: Ideals and Spectrum

• Academic festval at Chungbuk National University , May 17, 2023, Research on Singularities via Algebraic Geometry

• International conference “Singularities and Algebraic Geometry”, Febuary 06-10, 2023, Hodge ideals and spectrum of isolated hypersurface singularities (Feb.07)

• Science day at Chungbuk National University, November 02, 2022, Conjectures solved by June Huh

• 2022 International Conference on Combinatorial Algebraic Geometry, December 18-21, 2022, Application of algebraic geoemtry (pannel discussion)

• Joint workshop on algebraic geometry and mathematics education, December 08-09, 2022, Work of June Huh (Fields medal)

• Jeonju Algebraic geometry workshop 2021 spring, May 22, 2021, Calculation of spectrum

• Jeonju Algebraic geometry (JJAG),  May 15, 2021, On Hodge ideals and spectrum

• Daegu Algebraic geometry workshop 2021,  March 27, 2021, Hodge Ideals and Spectrum of Isolated Hypersurface Singularities.

• A course on Saito Theory at University of Miami  (online),

January 12,2021, Hodge Ideals and Spectrum of Isolated Hypersurface Singularities - Overview,

January 13,2021, Hodge Ideals and Spectrum of Isolated Hypersurface Singularities - Spectrum.

• The 9th Workshop of AORC (online), December 29, 2020, Gamma spectrum of non-degenerate functions with simplicial Newton polytopes.

• 2020 KMS Annual meeting (online), October 23, 2020, On the explicit calculation of Hirzebruch-Milnor classes of certain low dimensional hyperplane arrangements and some combinatorics.

• The 8th Workshop of AORC (online), August 19, 2020, Hodge ideal and spectrum.

• 2020 KMS Annual meeting (online), June 03, 2020, Hodge ideal and spectrum.

• 7th-AORC workshop, December 20, 2019, Hodge spectrum and toric geometry.

• Challenging algebraic geometry workshop, November 08, 2019, Hodge ideal and spectrum of isolated singularities.

• 2019 KMS Annual Meeting, October 27, 2019, Spectrum of projective plane curve arrangements with ordinary singularities.

• AORC Monthly Seminar, March 29, 2019, Combinatorics in Singularity theory .

• East Asian Core Doctoral Forum on Mathematics 2019, January 09, 2019, A concrete calculation of Hirzebruch-Milnor class of hyperplane arrangements.

• IBS Center for Geometry and Physics Seminar Talk, June 31, 2018, A concrete calculation of Hirzebruch-Milnor classes.

• Joint International Meeting of the American Mathematical Society and the Chinese Mathematical Society, June 11, 2018, On the explicit calculation of Hirzebruch-Milnor classes of hyperplane arrangements. 

• Young Algebraic GeometerWorkshop, April 04, 2018, Hodge ideal and Milnor number .

• KIAS AG Seminar, December 29, 2017, Motivic Milnor fiber .

• Winter School on Singularity and Mathematical Physics, December 14, 2017, Resolution and embedding .

• KIAS AG Seminar, December 05, 2017, Introduction to local systems .

• Workshop on Algebraic Geometry - Gunsan, November 20, 2017, Topics related to Milnor fiber .

• Complex Geometry Seminar, October 12 , 2017, Log canonical threshold from the Milnor fiber of Singularity .

• 4-ManifoldsWorkshop (SNU-SSWU), July 20, 2017, Hodge spectrum of hypersurface singularity .

• Shinchon Workshops on Algebraic Geometry 2, February 27, 2017, Hirzebruch-Milnor Class of Hyperplane arrangements .

• 2016 Pohang MathematicsWorkshop talk, November 24, 2016, Combinatorics of Hyperplane arrangements.

• 1st SSAG-Seoul Seminar on Algebraic Geometry, October 01, 2016, Cohomology support loci and holomorphic one form .

• KIAS AG Seminar, September 12, 2016, A general question on hyperplane arrangements .

• Post doc lecture series - 6 Hours, June 07– 09, 2016, Singularity and Local systems .

• KIAS Algebraic geometry seminar, December 16, 2015, Cohomology support loci and holomorphic forms of degree one .

• 2015 Pohang MathematicsWorkshop, November 16, 2015, Cohomology support loci and forms of degree one .

• 2015 Annual Meeting of the Korean Mathematical Society, October 24, 2015, Rank one local systems and forms of degree one .

• Summer School on Algebraic Geometry, August 17-20, 2015, Local system .

• KIAS Workshop on Algebraic Geometry and Physics, April 3-4, 2015, Milnor fiber and local system .

• CGP-GAIA Algebraic Geometry workshop, April 11-13, 2014, Milnor fiber of isolated hypersurface singularities .

• Workshop on Geometry and Combinatorics at EwhaWomans University, February 21, 2014, The Hodge spectrum of hypersurface singularities.

• KIAS AG+CA Seminar, January 16, 2019, The Hodge spectrum of hyperplane arrangements.

• Center for Mathematical Challenges Seminar, January 14, 2019, The Hodge spectrum of hypersurface singularities.

• Symposium in Algebraic Geometry, December 19, 2013, Hodge spectrum of hyperplane arrangement.

• Pohang Mathematics Institute T-Seminar, October 16, 2013, Singularity invariants related to Milnor fiber.

• Center for Geometry and Physics Algebraic Geometry Seminar, October 4, 2013, Hodge Spectrum of Hyperplane Singularity.

• Center for Geometry and Physics Regular Seminar, September 13, 2013, Singularity invariants related to Milnor fiber.

• Notre Dame Math Graduate Student Seminar, 2011, From morphisms to spectral sequences with schematic pictures.

• Seoul National University Topology Seminar, 2008, Trigonometry in complex sphere.