A process for closing a fill passageway into a container with a closure unit comprising a pour spout and a closure cap. The pour spout is mounted to a neck finish associated with a container in an anchored position on the neck finish without blocking later removal of the closure cap from the pour spout by a consumer to expose the fluid-discharge outlet of the pour spout to permit discharge of fluid material from the interior region of the container through the exposed fluid-discharge outlet while the pour spout remains in the stationary anchored position on the neck finish.