Jennifer Turner, director of the China Environment Forum at the Woodrow Wilson Center in Washington, said China's decision to block many plastic recyclables is a global game changer, forcing cities in the US and Europe to figure out what to do with their huge mountains of plastics.
Local media said PPK has developed more than 50 anti-counterfeit tech products and it is the country's first firm that has won overseas invention patents from countries including the US, Russia and South Africa.
The site in Xi'an City where the statues were excavated along with clay chariots and horses has been declared a World Heritage Site by UNESCO and is now part of a museum.
Ma's suggestions were echoed by Liu Junhai, a business law professor with Renmin University of China. He said household services companies should offer more training to workers and set up a better appraisal system to improve service to customers.
Domestic workers should have more professional training so that they can acquire the skill set needed, said Ma.