The government has insisted that leaving the EU single market as well as the customs union are a key part of its Brexit strategy.
The Chinese archaeologists made one of their biggest breakthroughs during a 2011 excavation of Fuyan Cave in Hunan province, where they found 47 teeth belonging to modern humans. The teeth were buried underneath stalagmites that were found to be least 80,000 years old, suggesting the fossils were older.
"It would be great for the government just to set the stage to let the market play," Tang said. "We use the US as an example - don't put so much emphasis on restrictions and limitations."
He added "Today, we mark a major step in fulfilling our commitment to improving the lives of all in the Kingdom, a key pillar of Vision 2030."
The discovery of an 88,000-year-old human finger bone at the Al Wusta archaeological site in the Nefud Desert, Saudi Arabia, has turned this idea on its head. The age of the fossil suggests an earlier migration from Africa into Eurasia - a theory supported by other archaeological discoveries made in China that were previously met with skepticism.