Is there an ACT test center in Chinese mainland? Are we all going to take exams abroad?

Yes, they all go to Hong Kong, Macau, Korea, Japan, Singapore and other regions. If your parents are not with you, I think you can go with the test group to ensure safety. As for whether the hotel will accept minors, you should also call for advice. Every hotel is different. If you choose the test group, you can choose the test group of ACTclub, because they can guarantee the test position in the test group and belong to the official promotion agency of ACT in the Mainland, which is more reliable.