Hi. I am a US Citizen and was formerly a Filipino citizen. I am currently located here in the Philippines on business and will need to travel to Beijing. I want to get a 1 year multiple entry business visa. I checked the requirements and I already have the invitation from a company in Beijing China and a guarantee letter from my company in the USA, round trip ticket and hotel information but I do not understand the "An original Visa Notificatin Form issued by Chinese Authorized Unit". What is that? Would that be the same as the letter of invitation from the copmany I will visit?