Tianjin’s Changlu Hangu Salt Field commemorated its 1,100th anniversary on Thursday, showcasing its remarkable journey from an ancient salt production site to a beacon of green and high-quality development. Established in 925, the Hangu Salt Field has long been a cornerstone of salt production along China’s Bohai coast, with an annual output of approximately one million tons. Over the centuries, the field has transitioned from traditional methods like ‘boiling seawater for salt’ to advanced, intelligent production systems that seamlessly blend industrial efficiency with cultural tourism. Yan Haibin, head of the publicity department at the Hangu Salt Field, emphasized the dual significance of the site: ‘We are not only preserving a millennium-old salt field but also safeguarding a cultural heritage that has been passed down through generations.’ The anniversary celebration highlights the field’s enduring legacy and its role as a model for sustainable development in the modern era.