For anyone wishing to have your passport mishandled and used to import cars from Japan, please sign the completely meaningless contract this company offers. Currently based in Changchun and also known as Tianshu, they misuse passports and frequently claim they are perfectly within their rights to hold YOUR PASSPORT as insurance against a private debt. They also use scare tactics for anyone wishing to leave due to their (the company's) failure to fulfil the contract. Oh, they also will tell their teachers that they have special rights to change the visa you hold if you decide to leave the company - not true.
Avoid this company and the glistening (albeit mispelled and gramatically retarded) reviews issued by mysterious identities who have never been heard of by the (often mentally deficient) employees.
Trev.