Modular mining systems refer to highly adaptable and dynamic mining management solutions that employ modular software and hardware components to optimize and streamline mining operations. These systems encompass a broad range of technologies, including autonomous equipment, real-time monitoring, fleet management, and data analytics, all of which are designed to enhance operational efficiency, safety, and productivity in the mining industry.

Magnesite is an important ore that is used to produce magnesium. It occurs in ultramafic rocks, peridotite, serpentinite, and other magnesium-rich rocks. Magnesite exhibits superior flame and heat retardant properties; thus, it is mainly used in refractory applications.

In recent years, governments all across the world have come to understand the impact of the mining industry on economic expansion. Consequently, some emerging economies have been putting policies and programs into place to encourage the expansion of the mining sector. Both mining companies and the producers of mining equipment stand to gain from the government'sincreasing support for the industry.

Marine calcium is a source of calcium derived from ocean species such as fishbones, shellfish, crustacean shells, and coral and seaweed. The production, distribution, and consumption of calcium comes from marine sources, mostly brackish and seawater. It has various applications, such as supplements, cosmetics, and others (animal feed and agriculture).

2024年全年全国原煤产量整体呈现逐季攀升的态势，全年总产量达476078.8万吨，同比增长2.2%。其中内蒙古的产量增长最为明显，从一季度的32404.1万吨逐步攀升至四季 度的34956.9万吨，其中，第四季度产量同比增速高达12.86%，成为全国增量的主要来源。与此同时，山西产量波动较大，一季度与二季度产量同比各自下降18.47%和8.14%，三季度实现了约0.46%的短暂回正增长，四季度产量同比再次下跌了3.02%，全年山西产量占比降至约26.73%。此外，陕西产煤表现相对平稳，一季度同比下跌0.84%，但后三季度产量同比实现了逐步回升，四季度增速可达1.9%，全年产量78009.6万吨，约占全国16.39%。总体上，2024年全国原煤产量逐季回升，内蒙古增产显著，山西波动下降，陕西小幅回暖。

根据 IEA 数据，2024 年全球煤炭产量预计将略有增加，与煤炭需求放缓一致。主要增产国：2024 年中国原煤产量 47.6 亿吨，同比增长 1.3%；2024 印度尼西亚原煤产量 8.4 亿吨，同比增长 7.8%；2024 年印度原煤产量 10.8 亿吨，同比增长 7.2%。主要减产国：2024 年 1-11 月美国原煤产量 4.3 亿吨，同比-11.9%；2024 年 Q1-3 澳大利亚原煤产量 4.0 亿吨，同比-0.6%；2024 年 1-11 月俄罗斯原煤产量 3.9 亿吨，同比-1.4%。

本周秦港价格周环比下降，产地大同价格周环比下降。港口动力煤：截至2月20日，秦皇岛港动力煤(Q5500)山西产市场价 723 元/吨，周环比下跌 20 元/吨。产地动力煤：截至2月21日，陕西榆林动力块煤（Q6000）坑口价 625 元/吨，周环比下跌 60.0 元/吨；内蒙古东胜大块精煤车板价（Q5500）514 元/吨，周环比下跌 61.0 元/吨；大同南郊粘煤坑口价(含税)（Q5500）568 元/吨，周环比下跌 28 元/吨。国际动力煤离岸价：截至2月20日，纽卡斯尔 NEWC5500 大卡动力煤 FOB 现货价格 89.8 美元/吨，周环比持平；ARA6000 大卡动力煤现货价 95.6 美元/吨，周环比上涨 1.0 美元/吨；理查兹港动力煤 FOB 现货价 79.3 美元/吨，周环比下跌 0.3 美元/吨。

煤炭与消费用燃料行业：如何看待当前焦煤商品与权益？-长江证券