SIDance (Seoul International Dance Festival) is a regular international festival. SIDance aims to foster exchange between dancers and performances, organizes co-production and tour and performs perfectly as a leading entity of cultural exchange. Moreover, by collaborating with international performance art festivals, it is also taking the role of spreading out the excellence of Korean performance art throughout the world.

TROIS C-L and SIDance festival collaborate together on a regular basis since 2018.

In 2022, TROIS C-L hosted choreographer Jaehee Choi, supported by SIDance with her project Independent Coexistence, while Jill Crovisier will take part in the SIDance festival in autumn with The Hidden Garden.

In 2023, TROIS C-L hosted choreographer Jong-in CHOI and his team for a residency period and a participation in the 3 du TROIS of July.

In 2024, the duo Sarah Baltzinger & Isaiah Wilson is invited to participate to the festival in Seoul with their piece MEGASTRUCTURE.