Is singtel, a Singaporean operator, Unicom or Mobile in China?

SINGTEL is one of the optional network operators for Unicom post-paid users roaming to Singapore. Unicom's post-paid users roam to Singapore after opening international services. The optional network operators are SINGTEL, MOBILE ONE and StarHub. The call charge in Singapore is .96 yuan/minute for roaming places, .96 yuan/minute for answering roaming places, .96 yuan/minute for calling Chinese mainland, 4.86 yuan/minute for calling Taiwan, Hong Kong, Macao and other countries and regions, .36 yuan/message for sending Chinese mainland and 1.26 yuan/message for sending other countries and regions. Tips: As the access scope and tariff standard of international roaming in Taiwan, Hong Kong and Macao will be adjusted constantly, information about international roaming can be found in Unicom's online business hall or by calling customer service.