走进广西贺州市平桂区碳酸钙产业一线，便能看到上述景象。"十四五"以来，依托"中国重钙之都"的资 源优势，该区推动碳酸钙这一传统产业向绿色化、智能化转型升级，通过技术革新、装备升级与产业链 延伸，激发新质生产力，走出了一条生态与经济双赢的高质量发展之路。 中新网广西贺州1月26日电(麦炜 张然然 姚启雯 张广权)机器轰鸣的生产车间内，几乎不见粉尘飘散，只 有密封管道内物料流动的细微声响；曾经裸露的矿山开采区，如今已是阶梯覆绿，草木葱茏，与周边青 山融为一体。 图为广西 贺州市宝利丰矿业有限公司的生产车间。姚启雯 摄 图为广西 长鸿生物材料有限公司全生物可降解热塑性塑料产业园。广西长鸿生物材料有限公司供图 这种"生态+产业"的融合发展模式，是平桂区"十四五"期间着力延链、补链、强链的生动实践。目前， 平桂区已初步形成从矿山开采、板材加工，到废料回收制备超细粉、合成人造岗石，再到高端新材料产 品的闭环式全产业链，真正做到了"一石多吃、吃干用尽"的资源循环最大化。 2025年，平桂区规模以上碳酸钙企业实现产值123.1亿元，占全区规上工业总产值的42.3%；全年新增规 上工业企业30家，总数达241家，并形成了碳酸钙 ...

Core Insights - The article highlights the development of the calcium carbonate industry in Hezhou, Guangxi, which has evolved into a billion-dollar industry, focusing on eco-friendly packaging materials that are gaining international traction [1][3]. Industry Overview - Hezhou is recognized as "China's Heavy Calcium Capital," with significant reserves of calcium carbonate, including 7 billion tons of marble, accounting for 1/8 of China's total marble resources [3]. - The city has established itself as a key player in the industrial transfer and collaborative development within the Guangdong-Hong Kong-Macao Greater Bay Area, fostering a circular industrial chain centered around high-end calcium carbonate new materials [3][4]. Company Developments - Hezhou Lushui Environmental Technology Co., Ltd. has 12 production lines and has achieved an output value of over 38 million yuan from January to November 2023, with expectations to exceed 40 million yuan for the entire year [1][4]. - The company exports 52% of its products to countries including the United States, Canada, Vietnam, and Thailand, and plans to expand its production capacity significantly by 2027 [4][5]. - Guangxi Changhong Biomaterials Co., Ltd., a key project in Hezhou, plans to invest 3 billion yuan and aims to become the largest production base for biodegradable masterbatches in China [4][5]. Future Prospects - The focus for companies includes developing high-end powder materials and expanding into new applications such as eco-friendly packaging and construction materials [5]. - The local government has been supportive in optimizing the business environment, facilitating the growth of the industry by addressing operational challenges faced by companies [5][6].