A refill container and a packaging container, the refill container provided with a pouring spout for pouring out contents stored in the refill container into the packaging container, the pouring spout comprising: a spout main body; and a closing unit, the spout main body including at least a bonded part bonded to a pouch main body part constituting the refill container, a tubular part for pouring out the contents, and a channel for passing the contents from an inside to an outside of the refill container, the closing unit including a closing member that freely opens and closes the channel, an attaching part that detachably attaches the closing unit to the spout main body, and a coupling member that connects the closing member and the attaching part, the spout main body being formed with an attached part to which the attaching part is detachably attached, the packaging container including a container main body and a pouring unit for pouring out the contents stored in the container main body, the pouring unit including at least a nozzle for pouring out the contents, the coupling member coupling a first surface of the closing member on the attaching part side and facing the pouch main body side in a mode of the closing member having closed the channel, and the attaching member, and the closing member including a fixed region corresponding to an area of a second surface opposite to the first surface on the attaching part side thereof in which the coupling member is coupled to the closing member, the fixed region being supported by the nozzle in a mode in which the closing member is pushed upward by the nozzle and the channel is opened, thereby holding an angle formed by the closing member with an end surface of the bonded part on the pouch main body part side at less than 90 degrees. a spout main body; and a closing unit, the spout main body including at least a bonded part bonded to a pouch main body part constituting the refill container, a tubular part for pouring out the contents, and a channel for passing the contents from an inside to an outside of the refill container, the closing unit including a closing member that freely opens and closes the channel, an attaching part that detachably attaches the closing unit to the spout main body, and a coupling member that connects the closing member and the attaching part, the spout main body being formed with an attached part to which the attaching part is detachably attached, the packaging container including a container main body and a pouring unit for pouring out the contents stored in the container main body, the pouring unit including at least a nozzle for pouring out the contents, the coupling member coupling a first surface of the closing member on the attaching part side and facing the pouch main body side in a mode of the closing member having closed the channel, and the attaching member, and the closing member including a fixed region corresponding to an area of a second surface opposite to the first surface on the attaching part side thereof in which the coupling member is coupled to the closing member, the fixed region being supported by the nozzle in a mode in which the closing member is pushed upward by the nozzle and the channel is opened, thereby holding an angle formed by the closing member with an end surface of the bonded part on the pouch main body part side at less than 90 degrees.