Four rendezvous problems fornnon-identical simple-integral plants (K1/s,K2/s, ⃛,Kn/s), with a common inputx(t)=Amimu(t),m= 0,1,2, ⃛, and initial output conditions of (ξ1,ξ2, ⃛, ξn), are studied in this paper. These rendezvous problems, generally speaking, are concerned with transferring thenplants outputs to meet one another in afinitetime (at a.fixedtarget or on anon-stationaryone).