The trip will mark Raisi’s first foreign visit since he took office in early August.
Khatibzadeh said Iran’s request for full SCO membership will be considered during the upcoming summit and expressed hope for a desirable outcome.
Tajikistan’s capital Dushanbe will be hosting the Shanghai Cooperation Organization summit on September 16-17.
The SCO is a Eurasian political, economic and security alliance founded by China, Kazakhstan, Kyrgyzstan, Russia, Tajikistan, and Uzbekistan.
The Islamic Republic has had an observer status at the SCO since 2005.