In Taiwan in winter. This is the only unpruned specimen. fairly commonly grown. The leaf-tips curve upwards. I now think it is likely to be Thuja chinensis possibly 'Globosa'.
From the way the leaves clasp the stem and angle outwards slightly, I think it's most likely to be one of the incense cedars, Libocedrus. There is a Taiwanese native incense cedar called Calocedrus, and the two are often confused, but I think this is actually Libocedrus, most likely L. chevalieri or L. bidwillii. You may be able to detect an incense like scent if you crush the leaves, but that depends on how sensitive your sense of smell is! Further info on Libocedrus here https://www.conifers.org/cu/Libocedrus.php
UPDATE: You have mentioned Thuja sinensis as a possible ID - whilst I agree the two are remarkably similar, I'm not seeing the flattened sprays/branches which Thuja has, so on balance, I still think it's more likely Libocedrus.