节点：中游（冶炼、中间品）位置：中游情绪：利好参考度：4/10
ITA国际锡协消息显示，美国国防部（DoD）正就关键矿产潜在储备征询相关信息，同时明确战略锡储备重熔意向。DoD发布公告，针对锂、镍、铬、碲及锡等金属，广泛征集潜在供应商、常规产品规格、相关法规及市场供需状况等信息。美国现有一批冷战时期建立的战略锡储备，原国防后勤局（DLA）曾持有超20万吨，1939年至20世纪90年代积累，多由德克萨斯州Texas City的Longhorn冶炼厂用玻利维亚锡精矿冶炼而成，近三十年持续抛储致库存大幅锐减。
长期储存中，部分锡锭受“锡疫”（tin pest）影响劣化，这是一种导致金属结构破坏的相变现象，会使金属粉化形成粉尘，最多造成约20%的锡质量损失。因此，部分库存金属当前难以直接使用，..
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