Reminds me of the old Steve Martin line..."...those French have a different word for everything! Like they say 'fromage' instead of 'cheese'..."
I tried from here for Xintian 9 at 183E and Intelsat 18 at 180E on C-band but no go. The furthest east I could receive on C-band with my 1-metre dish was Horizons 3e at 169E (encrypted AFN tp) and Intelsat 19 at 166E (best satellite on the arc from here with lots of tps).