NASA, ESA da CSA sun yi aiki tare a kan telescope tun 1996. Sahabbansa sun amince da halartar ESA a cikin gini da kaddamarwa a shekara ta 2003 kuma an sanya hannu kan yarjejeniya tsakanin ESA da NASA a shekara ta 2007. A musayar cikakken haɗin gwiwa, wakilci da kuma samun damar yin amfani da kallo ga masu binciken taurari, ESA na samar da kayan aikin NIRSpec, da Optical Bench Assembly na kayan aikin MIRI, wani Ariane 5 ECA launcher, da kuma ma'aikata don tallafawa ayyukan. CSA za ta samar da Sensor na Fine Guidance da Near-Infrared Imager Slitless Spectrograph da kuma ma'aikata don tallafawa ayyukan. Tambaya: Menene gudunmawar da ESA ke fatan samu don kayan aikin su da ma'aikata?
cikakken haɗin gwiwa, wakilci da kuma samun damar zuwa ga masu lura da taurari don masanan taurari