On March 27, Shanghai Bolei Intelligent Technology Co., Ltd. (hereinafter referred to as "Bolei Technology") and China Railway 21st Bureau Group Co., Ltd. officially signed a strategic cooperation agreement. This signing marks the entry of the "national team" of mining engineering construction—and the "frontrunner" in mining digitalization—into a new phase of strategic synergy characterized by comprehensive business coverage and long-term duration, building upon their existing foundation of cooperation.
This strategic signing marks a renewed collaboration between two industry leaders. The roots of this partnership can be traced back to 2024, when Bolei Technology and China Railway 21st Bureau worked side-by-side to tackle critical challenges at a mining project site in Inner Mongolia. That shared experience not only fostered mutual confidence on a technical level but also cultivated a deep reservoir of trust and camaraderie, thereby laying the most solid foundation of trust for the strategic agreement signed today.

China Railway No. 21 Bureau Group Co., Ltd. is a central enterprise under the supervision of the State-owned Assets Supervision and Administration Commission (SASAC) of the State Council, and is a subsidiary of China Railway Construction Corporation Limited (CRCC)—a Fortune Global 500 enterprise. The Company holds numerous Special-Grade and Grade-I general contracting qualifications across various sectors, including railways, highways, municipal works, general construction, and mining. Its business operations span engineering contracting, survey and design, real estate development, materials trading, and equipment manufacturing, with an annual construction capacity exceeding 50 billion RMB. In the field of mining engineering construction, the Company possesses extensive experience gained from numerous large-scale projects.
According to public records, China Railway No. 21 Bureau has participated in the construction of key projects across regions such as Gansu (Jiuquan Iron & Steel), Xinjiang (Zhundong), and Inner Mongolia (Ordos), thereby accumulating extensive experience in the fields of mining engineering, dedicated railway lines, and coal collection and transportation. In recent years, the Bureau has continued to strategically expand its presence in the realm of intelligent mining; specifically, by deploying autonomous electric mining trucks at the Shengli East No. 2 Mining Area in Inner Mongolia, it has successfully achieved unmanned operations within the mining area's transportation processes.
Bolei Technology is a world-leading provider of electric, autonomous mining trucks. Recognized as a National "Specialized, Refined, and Innovative" Little Giant Enterprise and a National High-Tech Enterprise, the company consistently adheres to a fully in-house developed "electrification + autonomous operation" technology roadmap, dedicated to delivering comprehensive, zero-carbon autonomous mining solutions to the global mining industry.
In the specialized segment of electric mining trucks, Bolei Technology has firmly established itself as the domestic market leader, commanding a 55.3% market share by shipment volume and a 32.6% share by revenue. As of 2024, based on both shipment volume and revenue, the company has emerged as the world's largest provider of autonomous electric mining trucks. The company has successively secured strategic investments from a diverse group of industrial investors and renowned institutions—including SPIC, BYD, Tongli Heavy Industry, and BOC International—and by 2025, it had raised a cumulative total of over 1 billion RMB in the primary market. It is currently accelerating the global expansion of its intelligent mining solutions.
Currently, Bolei Technology has successfully deployed its solutions across more than 30 mining projects nationwide, spanning a diverse range of mineral types including coal, metals, and construction materials. The company's flagship "Bolei Dianniu" series of pure-electric autonomous mining trucks achieves fully unmanned operations throughout the entire mining transport workflow, powered by core technologies developed entirely in-house—including the iDrive autonomous driving system, vehicle control unit, intelligent electric drive system, and smart battery swapping stations. To date, the company has accumulated an operational mileage exceeding 60 million kilometers, with its longest continuous and stable operation at a single mine spanning nearly four years—achieved with zero safety incidents.

It is reported that, under this strategic partnership, the two parties will focus on the green, intelligent, and unmanned development of mining operations. They will deeply integrate the resource strengths of China Railway 21st Bureau—specifically in mining EPC (Engineering, Procurement, and Construction), domestic and international project development, and localized implementation—with the technological capabilities of Bolei Technology across a full stack of solutions, including L4 autonomous driving, electric mining trucks, unmanned battery swapping, and intelligent dispatching. Together, they aim to establish a comprehensive collaborative ecosystem encompassing "Projects + Construction + Technology + Talent," thereby creating industry benchmarks for intelligent mining and driving a transformative leap in the sector—shifting from isolated, single-point applications to widespread, large-scale adoption.
From working shoulder-to-shoulder to overcome challenges at the Inner Mongolia project site to today’s signing of a strategic agreement, this partnership has evolved from project-specific collaboration into a deep-rooted, far-reaching alliance. One partner is the "national team" of mining engineering construction, while the other is the "frontrunner" in mining digitalization; as engineering prowess converges with cutting-edge technology, the path for the mining industry to transition from isolated intelligent applications to fully autonomous, end-to-end operations—and from setting domestic benchmarks to achieving global adoption—is becoming increasingly clear. Moving forward, the two parties will use this collaboration as a springboard to transform their respective strengths into a shared competitive advantage, making mining operations safer, more efficient, and greener.
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