Cultural relics prohibited abroad depend on their grades. If you are in the antique market, you can leave the country if you don't reach the level of national restrictions on leaving the country, but you have to go through expert appraisal and there are various handling fees. In China, because there are too many folk fine porcelain, some of which are even national cultural relics, many cultural relics will go abroad if they are allowed to leave the country, so the country can trade in the folk market, except those that are not allowed to leave the country in international auctions.