The APGN Week was first launched in 2020 on the 22nd of April, the World Earth Day. Thanks to the enthusiasm and creativity of our members, the First APGN Week was a great success. Thereafter, we successfully celebrated the Second and Third APGN Weeks respectively in 2021 and 2022. However, the dimensions and scales of all these three fairs were affected to varied degrees by the Covid-19 Pandemic. The Fourth APGN Week with the theme of Celebrating Earth Heritage and Strengthening Networking will be the first that can be conducted in a normal condition. Therefore, more onsite and interactive events/activities are expected to take place in the Fourth APGN Week.