Can I use China Mobile or China Unicom to travel to Taiwan Province Province?

Yes, you can. Unicom's mobile phone card has been opened for international roaming, and data can be used to surf the Internet in Taiwan Province Province. You already called. Open international roaming, when roaming in Taiwan Province Province, call Taiwan Province Province 0.96 yuan/minute, call domestic 0.96 yuan/minute, and answer 0.96 yuan/minute; Call other Hong Kong, Macao and Taiwan and international calls 3.86/ min; Send a text message to domestic customers at RMB 0.36 per message, and send a text message to Taiwan, Hong Kong, Macao and other countries and regions 1.26 yuan/message. All the above fees are calculated in RMB. As the opening policies of international roaming in different provinces are slightly different, please consult the local Unicom customer service hotline 100 10 to verify the opening for you.