National regulations are state regulations. Before the Han Dynasty, the ancient jade trade was subject to state restrictions, which became a threshold for collecting groups. I don't understand what it means?
The ancient jade before the Han Dynasty is called Gaogu jade (such as the jade from the Hongshan Culture, the jade from the Liangzhu Culture, the most important of which is the jade from the Spring and Autumn Period and the Warring States Period), and there are still many auctions. The company is auctioning overvalued jade such as the Han Dynasty green yellow jade dragon and phoenix pattern dressing table (including stool) of Jing Zhongjia International Auction Co., Ltd. The bidding started at 180 million yuan and was finally sold for 220 million yuan. Although there were national regulations in the past few days Cultural relics are auctioned, but there are still some transactions, both overt and covert. Now the collection market is hot and the collection types are mixed. The country does not want to spread the ancient jade with great historical value and significance to the private collection market