There are many reasons for me to believe their claims are real:
1. To get their E Vehicles on the new energy list of Department of Industry and Communication, all their claims are to be validated by third parties.
2. Their competitions are waiting to bust their chops if their claims are not true.
3. ZJMY was an angel investor of the project, witnessed their R&D work and final fruition.
4. Mr. Wang is very smart and successful business man. He must did his homework before putting his money into ZJMY and 72.5 mullion USD into Zhongtou Jinbo.
5. The roadshow attracted attention from both media and competition.
People may argue that why never heard of this company before. Well if I'm working on a project that could potentially revolutionize the industry I will keep everything in darkness until I'm ready. They have kept in darkness for seven years.
Now China and especially Chinese governments at all levels need their technology and products. Even if Tesla wants buy them out, the Chinese government might intervene. Because they don't want buy a massive amount of electric vehicles with Tesla prices. Tesla could buy a piece of the company by owning their stock I guess.