Tire tag housing and assembly method for annular apparatus

A housing (52) for a tag assembly comprises an internal chamber (62) defined by sidewalls (54, 56) and a bottom wall (55); a peripheral flange (78) projecting from the housing (52); convergent surfaces extending at an upper housing end to an upper surface; and a sensor portal (76) projecting through the housing upper surface in communication with the housing chamber (62). The housing (52) is positioned within a mold block (110) with the upper housing end resident within a mold block cavity (112). An upper surface of the peripheral flange (78) and housing sidewall superior to the flange abut sidewall portions of the mold block (110) to isolate the upper housing end with the cavity (112) while carrier strip material is induced into the mold (110) to partially embed the housing (52) therein. An annular apparatus is thus formed comprising an annular carrier strip (36) having a transponder housing at least partially embedded therein in which an upper housing end remains free of the carrier strip (36).