Group 1 - The core viewpoint of the article is that a misunderstanding occurred regarding the nature of a shipment seized by Nanning Customs, which was incorrectly identified as rare earth materials when it was actually solder paste containing bismuth [1][2]. Group 2 - On March 18, a company declared a shipment of 600 kilograms of solder paste for export to Thailand, labeled as "low-temperature solder paste" and "tin-bismuth alloy" for electronic welding purposes [1]. - The bismuth content in the solder paste was found to be 55.3%, and bismuth is classified as a nitrogen group element, not a rare earth element [1]. - Due to regulations, the export of goods containing bismuth requires an export license, which the company could not provide, leading to customs withholding the shipment [2].