Looking glass or web-tracerouter within Chinanet/AS4134 needed

Hello colleagues, I'm trying to optimize the latency & packet loss between CHINANET (AS4134) and our network. The outgoing traffic to china is fine now but I have no idea how they are routing towards us. This is why I'm looking for some sort of looking glass, route server or webtracerouter within AS4134. Any where to find one? Thanks, Gunther