I can give you some solutions to the problem:
1. If you salvage a huge amount of goods, you must go through the customs before entering the territorial waters of China. If it is an antique, it may be accused of smuggling cultural relics. It is hard to say that such a thing will not happen. The penalty for smuggling cultural relics is heavier, so be careful.
Second, China, as a member of the United Nations, should abide by the maritime conventions of the United Nations, because the sunken property on the high seas belongs to ownerless wealth, and it is a common practice that whoever salvages it will benefit. If you really want to ship it back to China, you can contact the customs department or the relevant cultural relics department and "hand over" the salvaged property to the cultural relics management department on the premise that the government provides compensation, which saves a lot of trouble and can also earn a sum of income. At the same time, as a China citizen, you did your civic duty and didn't let the cultural relics flow out.
Third, if you don't want to give the government a discount, you can find a knowledgeable manager, talk to him about the share, and let him help you sell it. This is a more appropriate way. Black market transactions have a large depreciation. It is better to find an experienced agent to contact collectors at home and abroad directly and sell them in bulk, but you still have to bear certain risks.
Fourth, it is time-consuming and laborious to transfer to some countries with relatively free management and then wait for an opportunity to resell.
5. You can auction. Choose some famous international auction houses and auction in Hong Kong and other places.
Sixth, the Ming Dynasty rosewood looks at the appearance, but in terms of material, rosewood is valuable, rosewood is the top grade, and the first-class blue and white and huanghuali utensils in the Ming Dynasty are also valuable, but they are also treasures of the Chinese nation. I hope the landlord will seriously consider them.