・6th H2K Workshop August 30-31, 2024
・5th H2K Woekshop September 1-2, 2023
・4th H2K Workshop February 17-18, 2023
・3rd H2K Workshop March 25, 2022
・2nd H2K Workshop March 6, 2021
・1st H2K Workshop March 28-29, 2019