Complex sentence: The spacecraft has since featured prominently in festivities and celebrations not only in China but also in foreign countries, such as official North Korean commemorative stamps showing the first Chinese manned spacecraft alongside the DPRK's first satellite Kwangmyŏngsŏng-1.
Split into simpler sentences: The spacecraft has since featured prominently in festivities and celebrations not only in China but even in foreign countries such as North Korea. Typical example are commemorative stamps showing the first Chinese manned spacecraft orbiting along the DPRK's first satellite Kwangmyŏngsŏng-1.