Folding transport container

A laterally foldable shipping container comprising a pair of side walls, at least one pair of end panels, a top wall, and a bottom wall, wherein one end of a side wall is mechanically coupled to the corresponding vertical side edge of a hinged end panel through a push-pull hinged connection, comprising at least a first piece and at least a second piece that are joined together through an intermediate piece, the first piece is fixed to the outer side surface of a hinged end panel and the second piece is fixed to the outer side surface of a side wall, the first piece is attached to a first vertical side edge of the intermediate piece by means of a first longitudinal axis that allows the rotation of both pieces or of the first piece on the intermediate piece or vice versa, the second piece is joined to a second vertical side edge opposite to the first vertical side edge of the intermediate piece by means of a second longitudinal axis parallel to the first axis, which allows the rotation of both pieces or of the intermediate piece on the second piece, wherein the collapsible shipping container comprises at least one pair of stiffeners arranged at opposite corners, i.e. at non-consecutive vertices of an end plane of the collapsible container in unfolded configuration.