On PDB, he is typed as EII, but he kinda seems to have more Se suggestive than polar.

https://jujutsu-kaisen.fandom.com/wiki/Yuta_Okkotsu

https://youtu.be/-7DAwKzBqYA

https://youtu.be/WcUhnvJXXs8

https://youtu.be/cae9DzaCnO4

https://youtu.be/cae9DzaCnO4