Going travel to Shanghai

Hello!
My name is Kseniia, I am Russian. Working in Tokyo as 正社員. My company is planning travel trip to Shanghai for 4 days. As I am a Rusiian, I need visa to go to China. Could you be kind and explain what I need to get visa. What documents from personally me and from my company do I need to apply?

Thank you for your answer in advance.
Best regards,
Kseniia